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U. S. DEPARTMENT 
OF AGRICULTURE 
Soil Conservation Service 




GUAYULE: A LIST OF REFERENCES 



Compiled by 
Alan J. Blanchard 
Assistant Librarian 



Soil Conservation 



Bibliography No. 4 
April 1942 



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\ 



This paper is available for limited distribution from: 

Division of Information 
Soil Conservation Service 
U. S. Department of Agriculture 
Washington, D. C. 



/ 



FOREWORD 



Using the resources of the libraries listed in "Sources consulted' 1 , 
efforts were taken to make this alphabetical list as complete as 
possible. All phases of guayule - the shrub s extraction of rubber 
from it, and the manufacture of finished products from this rubber - 
are covered . 

In the heyday of the wild shrub industry in Mexico } during the first 
decade of this century, references of some kind were made in many 
issues of the trade journals, especially India Rubber World. Since 
many of these were small items, it was decided, with few exceptions, 
to exclude thos„ less than a half -page in length. 

Only published items arc included and no attempt was made to search 
for references to newspaper articles. However, a few rather long, 
signed articles came to the attention of the compiler, and have been 
included. 

For convenience. Department of Agriculture Library call numbers have 
been inserted f :>r items available in that Library. 

Numerical symbols in the index refer to item numbers. 



Alan J. Blanchard 
Larch 1, 1942 



5270 



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II ~ 



SOURCES COFSUITED 



Card catalogs of the following libraries: 
Library Congress 
Pan American Union 

U.S.Bureau of Agricultural Economics 

U.S.Bureau >f Plant -Industry 

U.S. Department of Agriculture 

U.S. 'Department of Commerce 

U.S. Patent Office 

U.S.Su.1 Conservation Service 

Indexes: 

Agricultural Index, 191 6-Fob. 1942 

American Chemical Society. Chemical Abstracts, v. 1-35, 1907-1941 

Annual Library Index, 1905-1910 

Annual Literary Index, 1892-190/,. 

Annual Magazine Subject-Index, 1902-1939 

Biological Abstracts, v. 1-14, 1926-1940 
■ Botanical Abstracts, v. 1-11, 1918-1922 

Botanisches Centralblatt, bd.1-60, 143-172, 1880-1894, 1922-1937/38 

British Chemical Abstracts, A-Puro Chemistry, 1926-1938 

Chemisches Zentralblatt, bd .61 (pt .II )no .1, July 1890 -bd. Ill (pt.l) 
no. 20, May 15,1940.5 bd .112 (pt .I)no .1, Jan .1,1941; bd.ll2(pt.l) 
no .3-8 , Jon .15-Feb .19 , 1941 . 

Cumulative Book Index, 192S-Fcb.l942 
•Engineering Index, 1892/95-1940 

Industrial Arts Index, 1914- Jan. 194.2 

Irt .rnati >nal Catalog _i f Scientific Literature. D. Chemistry, 
lst-14th, 1901-1914? M.B-tany, lst-1/th, I90I-I914, 

International Index t-> Periodicals, 1907- J?- n. 194 2 

London. Chemical Society. A collective index ^f the transactions, 

proceedings and abstracts of the Chemical Society. 1893-1922. 3v 

llagazine Subject-Index, v.l, 1907 

Poole's Index t.) Periodical Literature. . .Rc-v.ed. ,1891. [cl3J2] 2v 

Supplements, Jan .188 2- Jon. 1,1907. 5v 
Public Affairs Information Service. Bulletin .. .191 5-Feb .21,194-2 
Readers Guide to Periodical Literature, 1900-Feb .25, 194-2 - 
Societe Chimique de France. Bulletin. . .renoi res, 18 89-193 2 . Bulletin... 

Documentation, 1933-1938 
Society of Chemical Industry. Journal. British Chemical Abstracts. B 

(Applied Chemistry) 1926-1938 
U.S.Bureau of Agricultural Economics .Li bra ry. Agricultural Economics 

Literature, v. 1-13, 1927-1939 
U.S .Bureau of Agricultural Economics .Library . [Rubber , index - unpublished] 
U.S. Department of Agriculture .Division of Publications .Index to the 

Publications of the United States Department of Agriculture, 

1901-1935. 3v 

U. 5. Office of Experiment Stations. Experiment Station fiecord, v. 85, no. 1, 
Hnly 1941 *Jv.;86, SkA.:2, Feb. 1942 

U.S. Off ice of Experiment Stations. General Index to Experiment Station 
Ro-cord, v.l- 84, 18 89- June 1941 



- Ill - 



U.S.Soil Conservation Far vice .library. Soil Conservation Literature: 
Selected Current References, v. 1-6, no. 1, Jan ./Feb. 1937- Jan ./Feb .1942 
United States Catalog; Books in Print. 1932, Jan. 1,1912, Jan. 1,1928 
Vertical File Service Catalog, v. 6-11, no. 2, 1937-Feb .1942 

Bibliographies : 

Bedford, C.H. Systematic survey of rubber chemistryja bibliography... 

385pp. New York, Chemical catalog company, inc. ,1923 
...Bibliography of rubber literature (excluding patents)... 1935- 

1938/39. Hew York, The Rubber age, 1936-1940 . 
Bogart,R.E. Rubber and rubber substitutes; a bibliography... 

4.3 numb.l ., processed . [Syracuse, N.l r . ]1917 
London. Science Museum. Science Library. ...Lubber; its anti-oxidants 

and preservatives, compiled by the Science library and the Research 

association of British rubber manufacturers. 82pp. London , 

1934- ( Its bibliographical scries, no. 151) 
Rubber bibliography (title varies) In issues of India Rubber World, 

v. 20, no. 6 - v. 105, no. 5. Sent .1899-Feb .1942 
Rutgers, A. A. L. . . .Rubber-bibliographic . Rubber bibliography, 1901- 

1916... 84pp. [Batavia ]1917 (Communications General Experiment 

Station A.Y.R.O.S. Rubber Series no. 5) 
Special -^ibrrries Association. Rubber Committee. ...Bibliography on 

rubber technology. 1924- Dec. 1927. 2 v. [New York, 1926-1930 ] 
U.S. Office of Foreign Agricultural Relations. ...Bibliography on 

rubber. 2 numb.l ., processed . [Washington, 1941] 
U.S.Forest Service. California Forest and I-?ng; Experiment Station. 

Guayule, a bibliography compiled by A. J/ .Avakian, librarian. . . 2pp., 

processed. [Berkeley, Calif . ,Far .1942 ] 
U.S. Library of Congress. Division of Bibliography. ...Select list 

of referenc is on rubber [by] H.H.I- ever . . . 19 numb.l ., typewritten. 

[Washington, 1910] 
U.S. National Bureau of Standards. A guide to the literature on 

rubber. 13 numb.l ., processed. [ fashing ton, 19 31 ] 
U.S .National Bureau of Standards . ...Guide to the literature on . 

rubber. 34pp.«j processed. hashing ton, 1941. (Its Letter 

circular LC626) 

U.S.Bureau of Plant Industry. Division of Plant exploration and 

Introduction. List of publicati ms on ;u?yule(Parthenium Argentatufll 

3 numb.l ., processed. [ 1hr ashin iton,1923? ] 
U.S.Bureau of Plant Industry. Divi si .in of Plant Exploration °nd 

Introduction. ...Literature of Rubber... 6pp., processed. 

[Washington, 1937] 



GUAYULE ■ 
A List of References 



Compiled by Alan J. Blanchard 
Assistant Librarian 



1. Acres for guayule; government ' s promotion of rubber-bearing bush is 

launched in California area where crop is already established. 
Business Week no ..-649, pp. 68, 70. Feb. 7, 1942. 280.8 Sy . 

"One group of authorities advocates sowing seeds thickly 
like grain and allowing them to grow unattended and unwatered 
for nine months, then harvesting the plants which, they say, will 
average 1,16-4 lb. of rubber per acre." 

2. Alexander, Paul . Some of the constituents of Parthenium argentatum 

(Gray), the shrub from which comes the so-called "guayule 
rubber". Internatl. Rubber Con g. Pro c. (1911)2:216-222. 78.9 In82 
Bibliographical footnotes . 

3. Alexander,P[aul] . Ueber bestandteile von Parthenium argentatum Gray, 

der stammpflanze des guayule-kautbchuks . Deut .Chem.Gesell.Ber. 
M 13): 2320-2328. Sept. 23,1911. 384 B45 
Bibliographical footnotes. 

German. Translated titletSome consstituents of P.arg.G.,the 
source of guayule rubber .Investigation of the acetone-soluble 
constituents and ethereal oil derived from the plant. 

Abstracted in Chem.Zentbl.82,Il(2^) : 1820-1821 . Dec. 13,1911- 
38^ Chem.Abs.5(23):3921. Dec. 10,1911. 381 Am33C 

4. Alexander, Paul and Bing,K. Ueber die gewinnung von kautschuk aus 

getrockneten kautschukpflanjsen. Tropenpflanzer 12(2): 57-68. 
Feb.1908. 26 T75 

German .Translated title :The extraction of rubber: from dried 
rubber plants. 

Includes guayule. 

Reprinted in Gummi Ztg .22(23) :604-607. Mar. 6,1908. 305.8 G95 
Abstracted in Chem.Abs.2(lO) 51494. May 20,1908. 381 Am33C 

5. Altamirano,F[ernando] Datos por la historia y explotacion del 

"guayule". Mex.Sec.de Fomento .Bol.II, 5(1) :1098-1123. 1905/ 
06. 8 F732A 

Spanish. Translated title :Data on the history and production 
of guayule. 

Answer by the National Medical Institute to a questionnaire 
on guayule, including a translation of Rudolph ^ndlich's "Der 
guayule und seine wirtschaftli che bedeutung" (see item no.5l). 



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6. Altamirano, Fernando. Memoriae sobre algunas' exploraciones botanicas 

practicadas en diciembre de 1907. Inst. Med. Nac.An/lO: [l5]-40, 
illus. Jan. /Mar. 1908. 516 M577 

Spanish. Translated titletMemoirs of some botanical explora- 
tions made in December 1907. 

Visita a la fabrica de cauchu en el Saltillo (Visit to the 
[guayule] rubber factory in Saltillo [Mexico]) : pp. 19-22. 

7. American rubber, gua yule. Sci.Amer. 144(6) ;406-407, illus. June 

1931. 470 Sci25 

.A follow-up on D.T.MacDougal' s article, "Can we grow our own 
rubber" (see item no.160). 

Guayule shrubs at Salinas, Calif . ,have reached maturity, been 
harvested, and a factory built - .Guayule rubber uoed in tires - 
Economics of guayule depend on price of hevea. 

8. Ampar balloon tires; standard tiros made from [guayule] rubber grown 

in the United States $ Ampar crude rubber equal to plantations 
in quality at a substantial saving in price. India Rubber 
World 77(4) :6 5-66, illus. Jan. 1928. "305,8 In2 

9. Anderson, J. Z. Domestic supply of rubber. Cong . Rec . 87 ( 3) ?3137~3142 . 

1941. 148.2 R24 

Statement in House, Apr .16, 1941(77th Congress, 1st session). 

General discussion of the development of the guayule rubber 
industry in the U.S., its economics, the need for an increased 
domestic supply because of the defense emergency, concluded with 
six reasons why the federal government should be interested in 
encouraging the guayule industry in the U .S. ; includes letter on 
historical background of guayule in the U.S. from Dr.E.C.Auchter, 
Chief of the U.S.Bureau of Plant Industry, to Mr .Anderson, and 
correspondence between the latter and Secretary of Agriculture 
Wallace on Department investigations into the possibility of 
producing rubber in the western hemisphere. 

10. Anderson, J. Z. Guayule rubber seen as defense product ; extension of 

remarks of Hon. John Z.Anderson of California in the House of 
Representatives.. .September 19,1940... Cong. Rec. 86(17) :app. 
p. 5778. 1941. 148.2 R24 
76th Congress, 3d session. 

Article from New York Times., Sept .12, 1940: interview with 
William 0' Neil, president of General Tire and Rubber Co., who 
urges domestic cultivation of guayule. 

11. Anderson, J. Z . Production of rubber in the United States; extension 

of remarks of Hon. John 2 .Anderson of California in the House 
of Representatives. , .April 25,1940. Article prepared by the 
Salinas, Calif ., Chamber of Commerce. Cong. Rec. 86(15) :app. 
2429-2430. 1940. 148.2 R24 
76th Congress, 1st session. 

Urges production of guayule rubber in U.S. through government 
assistance.. 



*, 3 « 

"12. Anderson, J. Z. ' Rubber'; extension of remarks of Hon. John Z.Anderson 
of California in the House of Representatives. . .Far ch 13,1940. 
Letter from Salinas [Calif . ] Chamber of Commerce. Cong.Rec. 
86(14) :app.lZl6-1417." 1940-. 148.2 R2A 
76th Congress, 3d session. 

Urges development of domestic guayule industry. 

13. Anderson, J. Z. Rubber; extension of remarks of Hon. John Z.Anderson 

of California in the House of Representatives .. .March 24,1941. 
Editorial from the San Jose[Calif . ]Kercury-Herald. Oo.r15.Rec.. 
(Bi-weekly ed. )87 (6 ) $11441-1442 . 1941 . MS . 2 R24 

77th Congress, 1st session. 

Urges federal interest in guayule rubber. 

14. As to machine-grown rubber. India Rubber " orld 59(5) :231. Feb. 

1919. 305.8 In2 

Ma chine- grown guayule "is a million-dollar undertaking and 
the small operator has no. great chance. With the expansion of 
business, however , it is perfectly possible that central 
factories will be installed for extraction and that guayule- 
growers will ship their product in as the biet-growers do theirs 
to the sugar centrals." 

15. Atrevido. ' Die gewinhung von kautschuk aus der guayule-pf lanze 

(Partheniunrargentatum Gray) Gummi Ztg.23(4) :93-94. Oct. 
23,19C8. 305.8 G95 

German. Translated title tThe extraction of rubber from the 
guayule plant . 

Description of the mechanical and chemical' methods. 

16. -Atrevido. Handelssorten des guayule-gummi dercn herstellung und 

erkennungszeichen,-unter alleiniger beriicksichtigung des 
iaechanischen verfahrens. Gummi Ztg. 23(17) r 530-501. Jan. 
•22,1909. 305.8 G95 ' 

German. Translated title ; Commercial varieties of guayule 
rubber, its manufacture and characteristics, with regard solely 
for- th-. mechanical' pro cess . 

17. Parber, Jackson. Possibilities Of .niayule rubber in America; a cuestion- 

and-answer forum concerning th~ widespread development of guayule 
in America.- Rubber Age L9 (5) s327-329, illus, • Aug. 1941 v 305.8 R82 

Quote tions from letter by Rep. John Z.Anderson querying 
Dr. David Spence,with letter's replies. 

18. Benedictis,A. de. II ruayulo . Agr. Colon . [ltaly]23 (1) :16-18. 

Jan. 1929 . 26 Ag82 
Article in Italian. 

History end description of plants planting experiments in 
Eritrea- since 1927. 

Abstracted in Bot . Centbl.l59(ll/l2) :381. Nov. 11, 1930. 450 B65 



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19. Elythe,S.G« Taming the wild p^yulo. • Sat. Evening post 203{LL)x 

28, 30,106., 109-110, illus. May 2,1931. 

Ris'tory of the pi: nt in • Mexico - Dr .1. cCallum' s experiments 
in cultivation - Dr. fpence • s chemical achievements - R:jl?t ion- 
ship of goayulet to rubber industry as a whole' 

20. Bochants'eva,Z.P, K biologii tsvet:niia guaiuly Perth enium arg^ntatumtaj 

Srcdi Aziatsk . Gosud .Univ. Trudy(Univ* Asia e Mediae Acta)? yr: 3-^ . 
• Pot .,fasc.l5. 16 pp.,- illus, 1933- 511 T18B 
BiMio graphic 1 footnotes-. 
* Russian, with German summary. Translated title :F.ssay on the 
biology of th 3 flower of Parthenium rrgentatura dray. 

21. Posse, a. Gvaiiula. Zhurn.Rezinovoi Prom' shlennocti 1923(2/3): 

71-77. Feb. /Mar. 19 23. 

•• References :p. 76-77. . ' ■• 

Russian . Translated title : Gup yule . 

22. Poutaric, J. Resume d'un^ etude sur divers es gommcs do Madagascar 

et leur melange avoc du guayulo et de la balata. Caoutchouc 
et la Gutta-percha 16 (186) -.9393-9900, illus. Aug. 15, 1919. 

Fr .nch. Translated title : Summary of a study on various 
Madagascar .aims ;-nd their mixture with guayule and balata. 

Abstracted in Chjm.A^s. 13(23) :3337. Dec. 10,1919. 331 Am33C; 
Qiem.Zentbl. 90, IV(19) $781-782. Nov. 5,1919- 38/1 C42 

23. Bowers, G-.B. Our home-grown rubber. Flower Grower 13(3) :133, illus . 

Mar. 1926. 80 1 72 • • 

"In the United States [guayule ] product ion has been lar .- ly 
' exp jrlmentai . Near 3s c ?nd: do , Cal if or nia , five-hundred r cr i s 
produce seed for a large tr? ct at Continental, Arizona, where 
important experiments are being carried on." 

2L. 'Bringing jucyule into central California : modern machinery combined 
with th.; most scientific botanical research 'is successfully 
introducing this Mexican rubber pl.-nt into the United States. 
Rubber Age 24(1) :28-29, illus. Oct .10,1928. 305.8 F.82 

Int . rcontinent. 1 Rubber Company's plantation in Monterey 
County — 8 photographs show plrnting process- in sequence. 

25. Broke, W.S. Juayule. Out Vfestjn. s .1(1) :i77-181, illus . Feb ,28, 

.1911. ...... • • " v : 

"Alfred Burbank at his experimental gardens at Prado[C lif . ] 
has succeeded in m.- king tlie plant reproduce itself." 

26. California. Legislature .Assembly. . . .Asseir.bly joint resolution 41, 

r.lative to memorializing Congress to investigate the 
feasibility of g roving of guayule rubber in California, and, 
if found feasible, to subsidize th.- .same. Cong. Roc. (.^-weekly cd.) 
87(ll).:4496. . 19a. 143 ..2 R2A . 
lay 26,1941. 77th Congress, 1st session. 



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27. ; Cal vino, Mario. Gemma clastic Italians, Cost?. Azzurra Agr.e 

Floreale U(8) : 197-203, illus . fug .1934. 16 C82 
Italian. Translated titletltalian rubber.. 
Includes guayule. 

28. Cariiahan, G.H. American-grown rubber produced from guayule • Chem. 

& Metall.En gin. 38(3) :128-131,illu£ Mar. 1931. 381 E12 

History of plant and production of rubber from it - Advantages 
of guayule over hevea,in that hevca carries rubber as a sealer 
of wounds whereas guayule builds it up as a concentrated reserve 
food supply- Ton of guayule rubber produced with one-sixteenth 
man-hours necessary for a ton from hevea. 

Partially reprinted in l4tJ5igost 110r26, illus . Sept .19,1931. 

29. Carnahan,G.H. The production of »;uayule rubber. ' Indus. and Sngin. 

Chem. 18(11) :1124-1126. Nov. 1926. 38I J825 

Paper presented before the Division of Rubber Chemistry, 
American Chemical Society, at the 72d meeting, Philadelphia, Pa . , 
' Sept. 5-H,1926, 

Soil end .climatic conditions necessary for growing guayule - 
■ Comparative factors in guryulo and plantation indm tries (labor 
cost, diseases and pests) - Futur-.; industrial outlook - Change in 
policy regarding guayule- development (n.ed for r.ctive cooperation 
by agriculturists and rubber manufacturers with the one company 
that so far has developed guayule). 

Abstracted in India Rubber and Tire Rev. 26(9) :3/-35. Sept.. 
1926. 305-8 In23. Reprint in Rubber Age 20(3) :136- 137. Nov.l0,L<£6. 305.8 R82 

30. Carnahan,G.H. Recent guayule- developments - chemical, cultural, and 

mechanical improvements.. India Rubber World 79(1) ; 53-5 5, illus . 
Oct. 1928. 305.8 In2 

Intercontinental Rubber Company's "r jtting" process dorosinates 
guayule, improvin ;j vulcanized rubber .Difference in tissue 
structure of cultivated shrubs, compared to the wild, which 
eases th^. extraction process. 

31. Carothors,G.C. Guayule in northern Mexico; the pebble method of 

. extracting rubber from the plant .. ,er ices and exports of 
guayule and rubber. U.T .Bur J"v nufacture.s , Monthly Consular 
and Trade Rpts .no. 3 53, p. 144. Feb. 1910. 157.7 C76 
Report by Consular Agent at Torreon,Fex. 

32. Caucho del guayule. Soc.Agr .Mcx.Bol.3Z (9) :165-166 . Mar.l, 

1910. 8 SolP 

Spanish. Translated title : Rubber from gur.yule. 

Gives description of the plant and the extraction process. 

33. El caucho nexicano. Soc .Agr .Ifex. Pol. 36 [i .e. ,3^]09) : 767-768. Oct. 

17,1910. 8 Sol B 

Spanish. Translated title:! oxican rubber. 

Discusses importance of the industry and three methods of 
extraction. 



- 6 - 



34-. Celestino, Grillo . La eoltivazione del guayule come pianta 

secondaria da caucciu. Costa Azzurra:Arr. e Floreale 17(4): 
92-95. Apr. 1937. 16 C82 

Italian. Translated title r Cultivation of juayulo as a secondary 
rubber plant. 

Experiments cia.de at the Royal Garden of Acclimatization at 
Fueihat [Bengazi, Libya Jon the acclimatization of guayule. 

35. Cherepanov, V.I . Materialy po raTonirovaniiu gvaTiuly v Azerbaidzhane . 

Akad. Nauk.Azerbeidzh. Filial. Bot. Inst. Trudy 2:119-146, illus . 
1936. /51 Akl 

Russian, with French summary. Translated title ^Materials of 
regional distribution of guayule in ' Azerbaidzhan. 

36. - Chute, H.O. The deresination of india rubber-Ill. . India Rubber 

World 40(4) : 3 51-352. July 1909. 335.8 In2 . 

Includes discussion of guayule resin - its solubility, qualities, 
and saponification. 

37. Congress approves guayule bill calling for cultivation of 75,000 acres. 

Rubber Age 50(5): 367. Feb. 19/ 2. 305.3 R82 

Senate passed amended bill Feb .9, after House passage Feb. 5. 

38. Cook,0.F. ...Rubber cultivation for Porto Rico. U.S .Sept.Agr. 

Div.Bot . Cir .28. ■ 12pp. [Washington, U.S. Govt, print, off 
1900] 1 -B65C 

Footnote, p .6, questioning the accuracy of the report in 
Scientific American for Fay 1900{see item no.!3.5)on a new 
Mexican rubber. 

: "The Indian name is said to be •yule 1 , -already -known in 
application to Castilloa, while the scientific designation, 
•Synathereoeas-Fexicanas' , seems to have been unfortunately 
chosgn, since the genus Synantherias, which has. the only similar 
name known to botanists, is a member of the aroid family... not 
a Mexican shrub." 

(See item no. 13? for identification of Synathereoeas M. ?s 
guayule . ) • ... 

39. Cork trees, -rubber bushes being grown in California. Sci.News Letter 

39(25):397.- June 21,1941. , 473 ?ci24 

"The new [guayule J stocks being grown are in a nursery 
sponsored by the Continental Rubber Company, whose directors wish 
. • to learn whether guayule can be successfully produced in the. 
interior valleys of California." 

43.- Cotton and' guayule in Lower California. India Rubber World 63(2): 
409-410, illus. May 1919. 305.3 In2 

California- stirred over whether ther ; is to be a large 
Japanese colony for the production of cotton and guayule on 
the immense holdings of the California-Mexico Land & Cattle 
Co ., consisting of 800,003 acres. 



- 7 - 



4.1. Crude rubber may be produced in California by cultivation of guayule 
shrub. Merc. Trust Rev. of the Pacific 15(13) :225-229. Oct. 
, 15,1926. 

"After fourteen years of experimentation in the southwestern 
states, including nineteen different plantings on plots ranging 
from one-half to two hundred -acres in California, a large 
eastern rubber company has -selected the Salinas Valley as the 
most favorable' locality to begin its operations." 

Includes discussion of rubber industry in gereral. 

42. Cultivation to enlarge guayule rubber supply... Rubber Age 20(3): 

127,illus. Nov. 10,1926. 305.8 R82 - 

"Slowness of wild .guayule shrub in reproducing after 
harvesting together with a greatly enlarged potential demand 
for improved guayule rubber has promoted experiments in 
cultivation, the success of which now seems assured. Optimum 
conditions found near Salinas, California, and the Continental 
Rubber Co. is expanding guayule plantations there." 

43. Cutler, D. A. 'Guayule rubber shrub was • considered a nuisance for 

centuries ' until ^.B.Aldrich discovered its possibilities in 
1904. Rubber Age 18(6) :202. Dec. 25, 1925. 305.8 R82 

Presented at Centennial dinner at p o£ton,Iv.ass.,-Dec.7,1925. 
Aldrich took part in organization of Continental Rubber Co.- 
of America. The latter firm is expected to. sell 8,000,003 lbs. 
of guayule rubber in 1925. Successful use of guayule has been 
made in tires and hard rubber goods.. 

44-. Dianov:., V.I . ,Sosnovets,A.A . ,and Stesbina,N.A. Sravnitel 'noe 

tsito-emoriolo -;ischeskoe issledovanie raznovidhostei Parthenium 
argentatuni Gray i Parthenium incanum Gray. Jour.Bot.de 
. ■■ ,. l'UR5S-.19(5):447-466,illus. '1934. 451 R923 
"Li teratura , "pp . 4 63-464 . 

Russian, with German summary. Translated title: Comparative 
sytoembryological analysis of the varieties of Parthenium 
argentatum Gray and Parthenium incanum Gray. 

Trr nslated' into" German" in Bot .Centbl . D eihef te, Abt . A,Morph . 
u. Physiol. der Pflanz. 53 : (2) :293-308,illus . Apr. 1935. 450 B65B 
r Abstracted in Bot. Centbl. 171 (5/6) :15 3. Apr .26,1937. A50 B65; 

r iol.Abs.ll(5):1094. l ay 1937. 4/.2.8-P526 

45. Doerin,,J.H. luayule rubber in tires and tubes; service tests in 
which the rubber was exclusively -uayula. Indus .and "n jin. 
Chem.26( 5): 541-543, illus. ' Kay 1934. 381 J825 

"Literature cited, "p. 543. 
■ "Tires and tubes have boen made in which the rubber used was 
exclusively guayule. These were of the 4.50 x 21 size and were 
tested in. Florida over a period of '2 years. These tires failed 
at mileages between 8^00 and' 10,500 because of tread wear. The 
inner tubes gave satisfactory service, throughout the duration 
of the test. The problems connected with the development and 



- 8 ~ 

processing of the compounds are discussed, and the formulas 
are ^Lven . " 

"Presented before the Division of Rubber Chemistry at the 
86th meeting of the Amer. Chem.Soc. , Chicago, 111 . ,'£ept, 10-1 5, 

1933. " 

Abstracted in S ci.,n.£. 78(2020) rSup.p. 9- c -jpt .15,1933 • 
479 fci2; 5oc.Chem. Indus. Jour. Brit. Chem.Abs.B, p. 638. July 
20,1934. 382 ^773; Chem.Ah S .28(13):4267. July 10, . 

1934 . 381 Am33C 

46. Dufrenoy, J. Le caoutchouc de guayule ( Par thenium ar -enteum (? )Gray) 

Agron. Colon. 23 (198) :168-172. June 1934. 26 Ag812 
"Bibliojrafie,"p.l72. 

"A review of present-day developments, with • particular ref- 
erence to the botanical ' aspects . " Abs . Chem.Abs .29(13) t/621. 
July 10,1935. 331 Am33C 

Reprint in Rev. Gen . Caoutchouc 12(108) : 23-29 . Jan. 1935. 

47. Duhaime, V.L. Guayule development; successful u:s of hitherto worth- 

less Mexican bush. U.T .Pur." Manufactures, T monthly Consular 
V and Trade Lpts.no. 311, p.l2Z. !\u*;.19Q6, 157.7. C76 

"Many sales of guayule on the .-/round have been reported at 
oyer five timer the price at which the land itself was held 
at previous to this boom... No claim is made that the gum ex- 
tracted .. .will .ever take the place of rubber, but it can be 
made a substitute in many forms of manulb cture . " 

Reprint .in Interna tl . Bur .Amer'-.-R publics Monthly ~'ul.23(3): 
691-692. Sept .1906. 150.9 M76 

48. Editorial [on rubber-producing trees and plants, with main emphasis 

on ;uayule] Chim.& Indus . [Paris ]40(l) :l-2. July 1938. 333 CA2 
: Article in French. 

Partially translated in Automotive Indus. 79(7):I95. Au^. 
13,1938, 

49. L'emploi du guayule comme plastifiant. Caoutchouc et la Gutta-percha 

i 22(256):12713,tables, June 15,1925. . ' 

French iTranslated title:The use of' ,uayule to ive plasticity. 

50. Endlich,R[udolf ] Guayule-kautschuk. Tropenpflanzer 7(11) : 556-557. 

Nov. 1903. . 26 T75 

German .Translated title: Guayule rubber. 

Letter to the edit or, brief ly : describing the plant and early 
production activities in Mexico. 

51. Endli ch, Rudolf .. Der guayule und seine wirtschaf tliche bedeutung. 

Tropenpflanzer 9 (5): 233-247. Fay 1905. 26 T75 • 
Bibliographical footnotes i y 

German . Translated title tGua yule and its economic importance. 

Gives description of the plant and methods: of extraction. 
Dried plants now brin ; from $30 to ''40 a ton. The plant will 
grow on v^ry poor and dry land and th_ j crop can be worked up 



_ Q _ 



at any- time during the j^ear.In districts suited to its culture 
it is believed that the crop can be grown- profitably, especially 
if culture and manufacture are combined. 

Translated under title, "The • juayule' rubber plant- I and II," 
in India Rubber World 32 (/) :33 5-336 . July 1905; 32( 5) r 367-369. 
Aug. 193 5. 30 5.8 In2 

Abstract in U .S. Off .Expt.Stas.,Expt .Sta.Rec. 17(3) *257~258. 
Nov. 190 5. 1 Ex6R 

52. Sndli ch, Rudolf . Ueber den gegenwa'rtigen stand und die aussichten der , 
guayuleindustrie . Tropenpflanzer 11(7) : Z 49-4-6 5, illus . July 
1907. 26 T75 

Bibliographical footnotes. 

German. Translated, title :The present position and prospects of the 
guayule industry. 

Gives description of plant , distinction between it and Parthenium 
incanum, companies operating in Mexico, extraction processes and the 
future of the industry. 

Reviewed in Intornatl.Bur .^mer . Republics Monthly Bui .26 (1) :Z.4-~Z7 • 
Jan. 1908. 150.9 M76. Abstract by J .M.Hillier (See item no. 107). 

53* Ephraim,F. Guayule rubber. . Met all. end Chem.Sngin.l7(2) :5Z. July 
15,1917. 381 E12 

fetter to the editor :.iriter claims to have operated at Torreon, 
Mex.,in Nov.l904-,the first plant extracting rubber from guayule 
, by mechanical means. He saw guayule plants successfully grown 
at Tucson, Ariz., on University of Arizona experimental plot about 
1915. . 

5L. Escobar, Romulo . El guayule y su propagacion. Ciudad Juarez, 7 ex., 
. Estac.Agr .Expt .Bol .25- 30pp. Mexico City, Fecretarla de 
foment o,1910. 102 CZ,9 
: Spanish:.Transla.ted title: Guayule and its propagation. 
History, descripti on, extraction, and reproduct ion 
Reviewed by F.E.Lloyd in Amer.Rev.Trop.Agr .1(8/9 ).?251-2 56. 
. Aug. /Sept .1910. 26 R322 

Abstract in Chem.Abs . 5(12) :2189-2190 . June 20,1911. 381 Am33C 

55. The extraction of guayule rubber. India Rubber "Torld 59(2) :85,illus . 

Nov.1918". 305.8 In2 

"The mechanical' extraction of guayule rubber consists, briefly, 
in reducing the shrub to pulp and separating the rubber by flo- 
tation. The product is then deresinated, sheeted, and dried, ready 
for shipment to the rubber manufacturer." 

56. Federov,S .M. Brediteli kauchukonosnogo. rasteniia-guaiiuly(Parthenium 

argentatum Gray). Subtropics 2(3/zJ :112-11Z,. Mar. /Apr. 
. : : 1930 . 20 Sul . • 

Russian. Translated titl^rlnsects injurioiis to the resiniferous 
plant guayule (Pr.rthenium argentatum Gray). 

•Enumerates American insects, Tvftich are not yet being met with 
on Crimean plantations .However, great many local insects are 
injurious to the plant, threatening underground parts as well 
as s terns, ljaves, and flowers. 



- 10 - 



57. Ferguson, W.W. California may steal the rubber industry. Los Angeles 

Daily News, Oct .22, 1941, p. 35- 

"Fred F. McCargar., secretary of the Salinas valley national 
defense commit tee, and G.A.Leo, Salinas farm manager of the Inter- 
continental Rubber Co.... have installed in the ^iltmor: hotel an 
exhibit showing the present development of rubber manufacture 
from the guayule plant." 

Gives description of plant, cultivation, and extraction. 

58. Finlcy, H.M. What .about this now rubber industry? Product accepted on 

commercial parity with that of tropics extracted -from desert 
shrub now being successfully cultivated in California - guayule 
to have thoroujh trial in southwest. Los Angeles Sunday Tines, 
Farm ana Orchard l c a.; ., Nov. 27,1927, pp. 2, 6,14. 

Story of its cultivation. "Time alone will tell whether this 
American rubber industry is to take its place among the important 
agricultural developments of the country. Very rarely, it is certain, 
has any crop introduction ev_r- been submitted to such an exhaustive 
advance investigation before being launched on a commercial basis." 

59. First rubber crop harvested in California. Pop. Mechanics Mag. 55(5): 

728-729, illus. Lay 1931. 291.8 ?81 

Guayule plantings started in Salinas valley in 1926. Now the care 
and cultivation of these shrubs is entirely mechanized. 

60. Fi tzpa trick, George . New Mexico can -tow rubber. New Lex. 20 (3) :17, 

26-27, illus. lwar.1942. 288.8 N*6 

"New Mexico soil and climatic conditions are suitable to the 
growing of guayule, particularly the southern part of the state, 
and the state's congressional delegation " has been assured of an 
allotment of seed for New Mexico from the Department of Agriculture 

61. For more guayule. India Rubber World 105U):393«' Jan. 1942. 3^5.3 In2 

Senator Downey, on Doc. 22, 19 41, introduced bill calling for 
Department of Agriculture to pl-'-nt 45,000 acres, of guayule. 
William Q 1 Neil, president of the General Tire & Rubber Co., urges 
government subsidy. 

62. Forbin,V. L'arbro a caoutchouc dee deserts mexicains. Mature 

[Paris ]no.2/,48, pp. 148-149, illus . Mar. 5,1921. 

French. Translated title : Rubber plant of the Mexican deserts. 

Gives desciiption, history of the plant, and the extraction 
process. 

Abstract in English in Interna tl. Rev. S'c'i. arid Prrct.Agr. [Rome] 
12(7)r852-853. ..July 1921. 241 In8 

63. Fox, CP. The discoverer of guayule. India Rubber World 39(4) rl30 . 

Jan. 1909. 30 5.3 In2 

Lett --r to the editor telling of John Milton Bigelow,his 
discovery of guayule, and. Asa Gray 1 s later description of it in 
1859. 



- 11 - 



64. Fox, CP. Excrement of guayulo-fod animal £ ■■ [abstract ] Science, n.s. 

33(S44):345. Mar .3,1911. 470 Sci2 

Presented before Division of Agricultural and Food Chemistry, 
American Qhemical Society, 4.3d general meeting, Minneapolis, Dec. 
28-31,1910. 

"During time of drought goats food upon the tender branches 
of the guayule , Parth enium argonta turn. The leaver of this plant 
do not contain rubber, but there is .a small amount pr^cont in 
the twigs. Th^ solid excrement of the guayule foraging animals 
does not contain a trace of caoutchouc. 

Pinguc( Colorado rubber weed ) is - regarded by stockmen as poison- 
ous to sheep. In this case death is caused by clo rging of the 
digestive organs with undigested rubber. Goats are n^t affected 
by guayule." - Fntire abstract. 

65. Fox, CP. The manufacture of mechanical ' guayule . India Rubber Rev. 

10(2) :52. Feb. 15,1910. 

Letter to the editor. - 

66. Fox, CP. Technical determination of caoutchouc in guayule. Jour. 

Indus. and Engin. Chom.l (10 ): 735-736. Oct .1909- 381 J825 
Abstract in Chsm.Abs .3(24) :3012 . Dec. 20,1909. 331 Am33C 

67. Fron, and- Francois . Le ",gu:yulo", plant e a caoutchouc du Mexinue.. Agr. 

Prat.dos Pays Chauds 1(1) :105-109,illus . July/Aug.1901. 26 AgSl 
French. Translated title •Guayule, rubber plant of Mcxi co . 
Botanical description. 

68. Fulmer,H.p. Guayule rubber; speech of Hon. Hampton P.FuImer of fouth 

Carolina in the House of Rcores entatives .. .February 5,194-2. 
Con g. Re c. (Drily ed. ) 88(27 ) :A447-A448. 194.2. 14*8.2 R24 

77th Cen2;rjss,2d session. 

Delivered during House consideration of S. 21 52, the guayule bill. 
Only partly on guayule. 

69. Gandara,Guillermo. Estudio botanico del guayule. Mex.Dir .Gen. Agr . 

Bol.3(4-):317-320,illus. Apr. 1913 . 

Spanish. Translated title tBotani cal study of guayule. 

70. General notices respecting economic product:.: and their development: 

the guayule rubber of Mexico. [ Gt. Prit-. ]Imp.In£ t. Bui. 4.(2): 
114-117. 1906. 26 G79 

"A short account... of its characters and of the methods 
employed for obtaining the rubber." 

Reprint in India Rubber Jour , n.s. 32(5) : 249-2 50. Au.?.27, 
1906. :/' 305.8 In21 



71. Gleason, Sterling. We now grow our own rubber; Mexico's wild weed 

guayule, raised on 56OO acres in California , yields precious latex. 
Pop. Sci. Mont lily 119(1 ):1 8-19, 120, iilus. July 1931 • 470 P 81 
Describes the history of the plant, Dr .W.B .McCallTM' s research 
in cultivati m, extraction, and the mechanization of the industry. 
"If the deadly blight which is the scourge of the hevea tree 



- 12 - 



should sweep through the tropical plantations as it has already- 
done in Brazil , guayule rubber might evert a serious world-wide 
rubber famine . 11 

72. Government tests indicate commercial utility of • guayule rubber; guayule 
said to be of almost equal utility to Hevea and even superior 
for some purposes ;big development under way. India Rubber and 
Tire Rev. 26 ( 8) :22, 26 , illus . Aug. 1926. 305.8 In23 

Preliminary reports of Bureau of standards tests for Inter- 
continental Rubber Company on guayule grown in California, Arizona, 
Texas, and Mexico. (For published report see item no. 237) 

73« Greeves-Carpenter, C.F. American- grown rubber. Compressed Air Mag. 
43 ( 5 ) : 5601- 5603 , illus . May 1938 . 

Includes description of the plant and of the Intercontinental 
Rubber Company's growing and processing operations. 

74. Grlinf eld, Otto . Altes und neues {iber kautschukcflanzen Kautschuk 

12(9):171-174. Fept.1936. 305.8 K16 

Bibliographical footnotes. . . 

German. Translated title tThe old and the new. regarding rubber 

^ ^tncj.udes .guayule. 

75. Guayule. Gummi Ztg. 24(38)1340-1341. June 17,1910. 305.3 095. 

Article in German. 

Brief history of its development in Mexico. 

76. Guayule. India Rubber Rev. 8(1) :13-14. Jan. 15, 1908. 

"The botanical department of the Uni v-rsity .of Texas has 
demonstrated that the guayule shrub... is not an exclusively arid 
growth... The only question yet to be determined in the experiment 
...is whether the excess of rainfall causes it to lose any of 
its rubber-producing qualities." 

77. Guayule. Rubber Age 20(3) :1?3. Nov. 10, 1926. 305.8 R82 

Editorial on the future of the guayulu industry through 
successful cultivation and volume production. . 

78. Guayule. Rubber Age 50(4)t286. Jan .1942. 305.8 R82 

Representative Anderson, Crl if ornia, introduced into the House 
on Jan. 6, 1942, a bill to provide for the planting of 75,000 
acres of guayule, in contrast to his earlier bill calling for 
45,000 .'will iam 0' Neil, president- of the General Tire and Rubber 
Company, is one of the leading advocates of guayule cultivation. 

79. Le guayule. Soc. Beige d« Etudes Colon. Bui .14( 5) : 437-441 . May 

1907. 26 Sol 

Article in French. 

History, description, and manufacture . 

80. 'Guayule - a "high grace rubber; botanical source - occurrence, yield and 

production - extraction and preparation - characteristics of 
guayule. India Rubber World 72(5) :6 52-6 53- Aug .192 5. 305.8 I 
"The plant... was discovered in northern Mexico in 1852 by 



- 13 - 



Dr. J.M.Bigelow,and later described and named Parthenium 
argentatum by Professor Asa Gray of Harvard" 

Discusses the effect of accelerators on guayule. 

81. Guayule and a blowout in the desert; the farmers' income and the price 

of tires. Calif .Countryman 13(2) t 17, illus . Nov. 1926. 6 Un34 

"The farmers of the Stat e of Calif oroia, it seems probable, 
mil be groving rubber -by the contract as they have grown b~ets 
in the past." 

Discusses Intercontinental Rubber Company's work at Salinas* 

82. Guayule as a rubber softener; a mix containing guayule will cure 

orooerly when small amounts of certain organic acids are added. 
Rubber Age 16(8) :266. Jan. 25, 1925. 335.8 R82 

83. Guayule cultivation in the United States, a rubber preparedness 

suggestion. India Rubber World 55(3 ) :133~135, illus . Dec. 
1916. 335-8 In2 
"References, "p. I35. 

"The long continued series of revolutions in Mexico reduced 
the average yearly export of 10,000 tons of guayule rubber to... 
1108 tons during the. 12 months ending June 1916." 

84. Guayule extraction mill; first factory in United States to process 

new American farm product starts work on West. Coast. India 
Rubber World . 83 (6) : 53-55, i 1 lus . ■ Mar .1931. 30 5.8 In2 

Intercontinental Rubber Company's subsidiary, American Rubber 
Producers jlnc ., formally opens $0. 50,000 plant near Salinas , Calif . , 
on Feb. 6, 1931 .Article tells -how rubber is washed and caked, how 
crops are developed, and what the present and potential uses of 
the rubber are. 

85. The guayule factories of Mexico. India Rubber World 34(4): 329-330, 

iilus. July 1906. 305.8 In2 

Gives illustrations of Continental's Torreon plant, output of 
Mexican guayule industry, and uses of the rubber. 

86. Guayule in the United States. India Rubber World 39(2):58. Nov. 

1908. 305.8 In2 

Texas company, Big Bend Manuf p cturing Co., acquires right to 
utilize guayule plants on state school Is nds. Texas Rubber Co. 
is formed, , .. .'.-j,-. - • . ' ■ 

Article gives' Asa Gray's description of the shrub in 1859. 

87. Guayule industry, its origin and development. Pan-Amer.Mag.33( 5) : 

225-227. . Oct. 19 21. 110 P19 

Gives history of the industry, description d£ plant, and prices 
and Mexican exports around 1910 to 1920. 



- u - 



88. Guayule interests. India Rubber World 36(5) r332,illus . Aug. 

1907. 305.8 In2 

Includes operations of producing companies and statement about, 
and picture of ,Dr .Adolpho Marx, associated with the guayule 
company L' Anglo Mexicana. 

89. Def guayule-ka'utschuk. Gummi Ztg. 21 (17): 416-417. Jan. 2$, 

1907. 305.8 G95 

German. Translated title : Guayule rubber. 

Discusses the Mexican producing companies ana the qualities 
of the rubber. 

90. Guayule legislation introduced in House. India Rubber World 104(4): 

54. July 1941. 305.8 In2 

H.R.503O introduced June 11,1941 to ; 'provide for the planting 
of 45,000 acres of guayule in order to make available a domestic 
source of crude rubber for emergency and. defense uses". This bill 
would create in the U.S. Dept. of .Agriculture - a $25,000,000 
corporation to be known as the Federal Guayule Corporation. 'The 
present condition of U.S. guayule plantings is discussed. 

91. SI guayule, planta silvestre que podria ser nueva fuente de riqueaa. 

Rev.de Agr. [Costa Rica ]13 (9 >s 437,439-440. Sept. 1941. 8 Ssl 
Spanish. Translated title cGuayule, the wild plant that may become 

a new source of wealth. 

Translated by Emiiio Artavia from Everybody's Weekly, Phila . , 

on the history of the guayule plant, experiments made in U.S. 

for growing and domesticating it, and its characteristics. 

92. La guayule, plant e a. caoutchouc; sa mise en culture aux Etats-Unis. 

Genie Civil 97(4):87-89. July 26,1930. 290.8 G29 

French .Translated title:Guayule rubber plant, its cultivation 
: in the United States. 

Consists mainly of excerpts of botanical information from 
M.W.Russell's "Le guayule. .. "and D.Spence's "Cultivation and 
preparation of rubber in the U.S. "(See items nos.219 and 231.) 

93* Guayule rubber, Kew Roy. Bot.Gard. Bui. Misc. Inform. no. 6, pp. 211-212. 
1910. 451 K51B 

Seeds were received at Kew Gardens in London and the bulk of 
them distributed to sub-tropical colonies. The balance were 
germinated at Kew and are doing well. 

Article includes dispatch from Mexican Minister showing guayule 
industry to be thriving there. 

94. Guayule rubber farms aided by new machinery. Business Week no. 80, p. 24, 

illus. Mar. 18, 1931. 280.8 Sy8 

95. The guayule rubber interest. India Rubber World 38(2) ;250, illus . 

May 1908. 305.8 In2 

Encouraging experiments of Elias Delafond, Mexico City, in 
cultivation of guayule. 



- 15 - 



• 96. Guayule rubber may hielp solve tire difficulty. Henderson asks prices 
be not raised above December 6 level. Coop. Consumer 3(24) ?7. 
Dec. 31 ,1941. 280.28 C7836 

97. me "guayule" rubber plant-Ill. India Rubber World 33(1) : 3-4, illus. 

Oct. 1905. 305.3 In2 

Continental Rubber Company will build factory at Torreon, 
Mexico, controlling extraction processes patented by W.A.Lawrence. 
Article gives description of latter and discusses operations of 
Coahuila Mining' and Smelting Co., Ltd., and the: International 
Guayule Rubber Co. (For parts I-II of this article see item no. 52. ) 

98. ' Guayule rubber production resumed; Border Rubber Co. [at Marathon, Tex. ] 

producing a ton a day from guayule shrubs; plant operating as 
subsidiary of C.T.Wilson Co. of New *ork. India Rubber & Tire 
Rev. 25(10) :78, illus. Oct .192 5. 305.3 In23 

99. Guayule rubber recovery; improved method of separating guayule from its 

natural f iber; entanglement. India Rubber World 79(5) :64, illus. 
Feb. 1929. 305.3 In2 
■ - ' Yeandle process. 

100. The guayule rubber situation. India Rubber World 33(6) :39 5-^96, illus . 

Sept.1908. ■ 305.0 In2 

"?8^may n scem Sin^lar to some that,vfhereas. business depression 
has prevailed in Mexico . during a year past, the same as elsewhere, 
the output of guayule ■ rubber continues to grow." 

101. Guayule, sein verwendung und v^rarbeitung. Gummi Ztg. 24(25) :856-857. 

Mar. 18,1910.' " 305.8 G95 

German. Translated title : Guayule, its use and manufacture. 

102. Guglielminetti, Silvio. II guayule, pianta da caucciu coltivabile in 

Italia e colonic. Costa Azzurre Agr. e Floreale l6(2):32-40. 
Feb. 1936; 16(3): 59-66, illus.- Tar .1936 . 16 C32 

Italian. Translated title: Guayule, rubber plant cultivable in 
Italy and her' colonies . 

History, varieties, diseases and parasites, rubber content, 
extraction, and culture in America and Russia. 

Abstract in Dot. Cent'bT. 171(13/14) :399. ^ug. 26, 1937- 450 B65 
Also printed as San Remo, Italy. St az .Sper .di Floricoltura "Orazio 
. .. # Raimondo. "Pub. 10. 18pp., illus. San Remo, Italy [1936? ] 86 Sa5 

103. Hamm,T.C. Guayule industry. U. S .Pur .Manufactures .Daily Consular & 

Trade Rpts. 15(138) :742-743- Aug. 10,1912. 157.7 C76D 

"The growth of the guayule rubber industry in the states of 
Durango and Coahuila has been truly remarkable. . .The plant occurs 
only in the mid state; several attempts have been made to 
propagate and cultivate it, but they all have been more or less 
unsuccessful." 



- 16 - 



104-. Harries,C. Zur kenntnis dor kautschukarten. Deut.Chc91.Gesell.BGr. 
36(9):1937-1941. J uno 20,1903. 384 B45 

Germ an .Translated titietlnformntion on kinds of rubber. 

Includes guayule. . . 

Abstract in Ghsm .Zentbl . 74, II (3) r 201-202 . July 15, 
1903. 33/4 C42 

105. Harvesting American-grown rubber in California. Sci .Amor .152(3) : 

ll6,illus. Mar .1935- 470 Sci 2 5 

Phot ograph, with explanatory remarks as follows: "Guayule , a 
domesticated wild desert shrub which yields 15 to 19 percent 
rubber is harvested at Salinas, California, by a subsidiary of the 
Intercontinental Rubber Company, which employs tractors for draw- 
ing diggers that uproot the plants. After drying in the sun these 
plants are picked up by another tractor-drawn ma. chine .. .which 
feeds them into a cutter, chops thorn into pieces and blows these 
pieces through the arched conduit shown, into r trailing truck. 
At the mill the chopped plants are fed through rotating tube- 
mills containing flint pebbles. This releases the rubber." 

106. Mauser, E. A. Home— grown and home-mr.de rubber. Indie Rubber World 

10^(6): 27-29 ,illus. c cpt.l94l. 305.8 In2 

Discusses hevea, reclaimed, synthetic, and guayule rubber. "Guayule 
rubber could be successfully grown in this country, resulting in 
a rubber which can be handled without any change in our present 
processing methods. 1 ' 

Reprint in India Rubber Jour .102(17) : 9-11 . Oct. 25, 19^1: 
Abstract, 102(26) : 518-519 . Dec. 27, 1941. 305.8 In21 

107. Hillicr, J.M. Guayule rubber (Parthenium argentatura,A.Gray) Kew Roy. 

• Bot.Gard. Bui. Misc. Inform, no .7, pp. 285-294. 1907. 451 K51B 

Composite article, containing ;" The first communication received 
at Kew on the subject of guayule was... dated 29th December j 1902, 
requesting information regarding the following extract from 
Circular No.. 28 issued by the United States Department of Agri- 
culture (the f ootnote referred to in item no. 38) . .. .This passage 
doubtless refers to the guayule, the name ' Synathereoeas 
Mexicanus 1 being probably intended for ' Cinantereas mexicanas', 
i.e., Mexican Compositae . " 

Max Fuller's report (see item no .180 ) 

Memorandum from British Vice-Consul Kennedy in Mexico. 

Reprint of article by Dr ,* .Olsson-Seff er fr^rn "The Mexican 
Investor". 

Abstract of n udolf Endlich's "Ueber den g egenwHrti gen stand 
und die aussichten dor guayule Industrie" (see item no. 32) 

Partially reprinted in India Rubber Jour.. (n.s . )34(6) s305« 
e opt .9,1907. 305.8 In21 

108. Holman,R.L. ' America's rubber farmsslhe guayule shrub, as rubbery 

as the tropical rubber plant ? is being grown right hero in 
California; it nay lead us to the path of. self-sufficiency. 
Forbes 48(9) sl2-13,32,illus . For. 1,1941 

"While Dr.FcCallun has tested it in four states, many authorities 
believe that it can be successfully produced anywhere in the South 
where cotton will grow well." 



- 17 - 



109. Holt, E.G. Qua yule . .rubber . U.S. Bur .Foreign aid Don. Con. Rubber 

Div.Spcc . Cir .1270. 3PP .^processed . [Washington, 1926 ] 

"Chihuahua, the northern part >f Zacrtocas and San Luis Potosi, 
the er stern part of Durrngo,and the Sour them districts of 
Coahuila are thj most important guayule districts in Mexico . " 
Discusses growth and decline of Mexican industry, domestication 
of shrub in United States, guayule production, including table 
of estimated production in Mexico for each year, 190 5-192 5. 

110. Holt, E.G. Mexico an important source of guayule rubber. U.S. Bur. . 

Foreign ana Don. Com. Don . C on. 29 (2)rl5. Jan. 8.-, 1942. 157.54 D713 

Includes table giving pounds, value, and. cost per pound of U.S. 
imports from Mexico, by years from 1929 to 194-0.. 

111. Home-grown rubber. Lig. Digest 89(4) .*25- Apr. 24, 1926. 

Includes letter from U.S. Dept. of Agriculture' in regard to 
commercial guayule operations in. Texas and experimental work- 
in California and Arizona. 

112. Hornaday,W.D. Guayule shrub as a source of crude rubber supply. 

Dun's Internatl. Rev. 51:39-41,6/!,, illus. Aug.l92S.. . , , 

"Commercializing the guayule shrub as. a source »>f : crude rubber 
supply may within the next few years, become an industry of vast 
importance in many semi-arid 'regions of the wo rid, according to 
experts who have studied the possibilities of domesticating the 
. . wild plants. " 

113. Hutchinson, J. Parthenium argent a turn A.Gray. • Hookers I cones 

Plantarum, Ser . 4, v. 10 , tabula 2993. 3pp. ,1 pi. 1913. 450 H76I 
Thorough botanical description. 

114. Intercontinental rubber company. Report to stockholders concerning 

the Intercontinental Rubber .Company, its property and business. 
28pp.,illus. New York, Continental Rubber Co. yf N f Y.[1926] 

"Intercontinental Rubber Co. is a holding and operating company 
engaged, through its subsidiaries, in the production of plantation 
rubber in Sumatra and )f guayule rubber in Mexico and the United 
States... The subsidiary companies .. ,are(l) Continental Plantation 
Company [Sumatra.] ... (2) Continental Mexican Rubber Co. and Cedros 
Ranch Co. The first named owns and operates four factories in 
Mexico for the production of guayule rubber, and the latter owns 
about 1,800,000 acres of land in Mexico, from which a portion of 
the guayule shrub... is obtained ... (3) Agricultural Products 
Corporation and Rubber Exploration Co.,t»jhich own a ranch in 
Arizona and a number of scattered small areas in California. 
On these properties, experimentation and development work have 
been conducted over a period of years .. .Under present methods 
a given amount of guayule rubber can be produced rath only one- 
fifteenth of the labor required for a corresponding quantity 
of plantation rubber .With the rosin extracted from the guayule 
product, the ratio would still be 12 to 1 in its favor .This 
advantage is sufficient to offset the much- lower wages paid 
to laborers in the plantation areas. . .Company expects gradually 



- 18 - 



-to increase its commercial Dperatioris and... the first commercial 
planting of 200 acres in California is under way, and seeds are 
being started for an additional 600 acres of plnnts to be set 
out next -..inter . (4) Continental Rubber Co. of New York, which cells 
and handles the output of guayule rubber..." 

"Guayule rubber [Habitat, production and use, operations of 
company's pi. nts,Dr. --.D. McCallum 1 s experiments on cultivation 
- in the' U.S.]", pp. 13-23. 

115. Ivanow,Sergius . Einiges {iber das studium dor kautschukhaltigcn 

pflanzen und des kautschuks der U.d.S.S.R. Kautschuk 6(11): 
237-239. I ; iov.l930> 6(12):256-253. Dec. 1930. 

German. Translated title :^ T otes on the study of rubber-bearing 
plants and rubber in U.S.S.R. 
• Includes guayule. 

116. January tire quota is 357,000; only"essential" vehicles to get con- 

sideration; government speeding output of synthetic, guayule, 
wild rubber. Automotive News 17(2701) tl, 8. Jan. 5,1942. 

117. Jardine,TT.M. Rubber, a crop rath possibilities... Nation's Business 

19(1) :27-30, 110, 112, illus. Jan. 1931. 286.8 N212 
Guayule, p. 30, 110. 

'A large share of the developments in guayule seed selection, 
germination, production, and. mechanical and chemical problems in 
extraction, have been achieved by a single commercial company... 
However, the U.S. Dept. of Agriculture has by no means been idle. 
The Department ' s experimental field of guayule at Shaf ter,Cal . , 
is making remo.rks.ble progrsss." 

118. Kalashnikov, V.M. K biologii tsvetcniia P"rthenium argentrtum Gray. 

Trudy F r ikl. Bo t., Genet., i Selek . (Bui .A-pl . Bot . , Genet . , and Plant 
Breeding)24(3):85~9S,illus. 1930. 4 51 F.92 
. .' Russian, with English summary. Translated title :A contribution 
to 'toe biology of flowering in Parthonium argent "turn Gray, 

119. Kalashnikov, V.M. Katerialy k nctodike selektsii gvaiuly (Farthonium 

ar gentatum Gray) Trudy Prikl . Pot . , Genet . , i Selek ( Bui .Appl . Bot . , 
Genet., and Plant Breeding)27(2) :4.89-5b0, illus . 1931. 451 R92 
Bibliographical footnotes. 

Bussian,with English summary. Translated titlerA contribution 
to the methodics of breeding the guayule{ Partheniurn. argentatum 
Gray) 

120. Kauff man, Eric. Guayule, the victory rubber. V:er .Forests 4.8(2) r 

72-73, 8^, 92, illus. Feb. 1942. 99.8 F762 

Senate Committee on Military Affairs reports favorably on 
S.2152,tb- bill to provide for planting of 45,000 acres of 
guayule. Similar bill, H.R. 6299, is introduced in House . "Gua yul e 
cannot be expected to perform the miracle of relieving the 
present rubber er.ergency.lt is a practicable and reasonably 
efficient but limited source of rvibber.lt produces a product 
acceptable to rubber manufacturers and usable without altera- 
tion of manufacturing rachinery.lt can be grovTi, harvested, and 



- 19 - 



processed at costs not unreasonably hifjB»,but substantially higher 
than the costs of producing rubber from the Para rubber tree in the 
American tropics. Its present value lies in the fact that it ean be 
harvested and processed from four to five years after field planting, 
a considerably shorter cycle than the Para tree." 

121 Kavka,B.ahd Zelnicek,A. Vysledky pokosu s pestovanlm kaucukodarne 

rostliny Partbonium argentatum Gray v letech 1932-1935- (Ergebnisse 
von anbauversuchen der kautschuklief ernden pflanze Parthenium 
argentatum Gray in den jahren 1932-1935). Ceskoslov.Akad .Zemedel . 
Vest .12(6/7) :47 5-480, illus. June/ July 1936. 19.5 C332 
"Literatura , "pp . 479-430 • 

Czech, with German summary. Trrnsla ted titlerResults of experiments 
on the cultivation of the rubber-bearing plant Partbonium. 
argentatum Gray in the years 1932-1935. 

122. Kieffor,D.L. Guayule, our own wartime rubber crop. Pacific P-ural Press 

and Calif .Farmer U(7):276. Apr. 5,1941. 6 P112 

"How about using farm land and farmers instead of crude oil, 
factories and scarce and expensive industrial labor or foreign 
plantations to make the rubber we need in order to feel safe? 
. . .If the government would subsidize the growers of guayule by 
guaranteeing them a price of 25/ per pound... they could dodge the 
overproduced crops . " 

123. King, A. H. Guayule and industrial preparedness. Metall.and Chem.Sngin. 

15(10): 563- 566, illus. Nov. 15,1916. . 381 512 

Shows need for home rubber industry in war times and gives 
description of shrub and processes of extraction. "Since 1912 guayule 
has been comparatively unimportant .This decline was brought about 
by internal conditions in Mexico and by wasteful methods of 
harvesting." 

Abstract in Chem.Abs .11(3) :307 . Feb. 10, 1917. 381 Ar.33C 

124. Kirchhof,F. Die rolle des kautschukkohlenwa sserstoff es in der pflanze. 

Kautschuk 12(3):45-48. far .1936. 3^5.8 K16 
Bibliographical footnotes. 

German. Translated title: The role of rubber hydrocarbon in the 
plant . 

Experiments with cortical tissue of guayule, p. 47 . 

125. Kirkwood, J.E. The growing of guayule in relation to the soil. 

Amer. Rev. Trop./.gr .1(5/6) sl42-158, illus. May/ June 1910. 26 R322 
"Literature cited,"p.l58. 

''Guayule .. .grows most abundantly on the' foothills or lower slopes 
of the mountains, where the soil is of limestone origin." 

126. . Kirkwood, J, E. Guayule rubber industry. Sci .Amor. 101(2) :24, 26, illus . 

July 10,1909. 470 , c ci25 

Discusses extraction processes, history of the industry, and supply 
of guayule, 

"The' only hope of prolon ;ing the business seems to be in so 
harvesting the plants that the roots are left in the ground;from 
these new shoots will arise, and in a few years possibly yield 
another crop worth the taking. How long this process can be kept up 
profitably is at present unknown." 



- 20 - 



127. Kirkwood, J.E. ^hc life history of Parthenium ( guayule}^ Amer.Rev. 

Trop.Agr.l(7):193-205,illus. July 1910 . 26 E3$2 
"Literature cited, "pp. 203-20/. 

128. Kirkivood, J.E. Propagation of guayule by seeds. Amer .Rev.Trop.Agr. 

l(2):34-43. Feb.l910j l(3A):77-84. Mar ./Apr. 1910 . 26 R322 

Bibliographical footnotes. 

Describes work done by Dept. of investigations of Continental 
Mexican Rubber Co. in state of Zacatecas, Mexico. 

"Seeding operations .. .result? were disappointing so far as the 
feasibility. from an economic standpoint was concerned, but the 
facts discovered will doubtless be of interest to the botanist, 
the manufacturer , and to those who are attempting to propagate the 
plant . " : . 

Abstract in U.S.0ff..Expi.Stas.Expt .Fta .Rec .23(6) t 543- 544. 
Nov. 1910. 1 Ex6R 

129. Kokieva,E. I storiia raz'itiia zhenskogo u Parthenium argentatum G. 

('guayule"). Jour '.Bot.de 1'UR.SS 17 (l):72-99,illus. 1932. /51R93 
Bibliographi cal footnotes . 
"Literature, "pp.9 5-97. 

Russian, with English summary ^Translated title: The- development 
of the female gametophyte in Parthenium argentatum G. (guayule). 
Abstract in %t. Cent bl. 166 (5/6): 138. Mar. 5,1934. 450 365 

130. Kokieva,E. Morf.ologi.ia i istoriia razvitiia sotsvetii Parthenium 

argentatum G.(gvaiiuly) i Parthenium hysterophorus L. Moskov. 
Obshch .Isp .Prirody, Otd . Biol.Biul . (Soc .Hat . de Moscow., Sect .Biol .Bui . ) 
(n.s. ) 40(3 A) : 207-236, 37 5~3£3,illus. 1931. 511 MS 5 

Bibliographi cal footnotes . 

"Literatura, "p. 234. 

Russian, with English summary. Translated .title ^Morphology and 
development of the inflorescence's ..of Parthenium -argentatum G. 
(guayule) and of Parthenium hysterophorus L. 

Abstract in Biol. Abs. 8(3) :766. Mar .1934. 442.8 B526 

131. Kolachov,P. J. American rubber from American farms. Natl. Farm 

Chemurg. Council [Papers] no. 124. 14 pp., processed. [Columbus, 
0.,194U] 381 N213P 

"Literature cited , "pp. 13-14. 

Description, rubber content , hi story, and cultivation of guayule, 
pp. IO-I3. ■'' 

Abstract (sections on kok-sagyz rr^ber only) in Indir Rubber 
World 105(4) s368. Jan .1942. - '30 5.3 In2 

132. Kopecny, Josef . Urcovani kaucuku v r.asich rostlinach. Ceskoslov. 

Akad . Zemedel . Vest .12 (1/2 ) : 6 5-66 . 1936 . 19 . 5 , ^3.32 

Czech'. Translated 'titles The determination of rubber in our 

plants 

Mainly on guayule. 

Abstract in Chem.Zentbl .107 (15) pt .1:3227 . Apr .8,1936. 334 C42 



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133. Kozak,! .P. Semennaia produktivnost 'i go kharakteristika u raznykh 

form guaiuiy( Parthenium argentatum Gray) Trudy Prkl.Bot. /Genet 
i Selok .Ser .A.Sotsialist .Rastenievod,. (Bul.Aopl.Bot . , Genet . ,and 
Pla nt Breeding .Ser . A . Plant I ridus .U . S . S .R . ) no . 5/6 , pp .12 5-13 5, illus . 
1933. 451 R92S 

Russian. Translated title :Seed productivity and its characteristics 
in different forms of the guayule(P. argentatum) 

Abstract in Biol. Abs .9(4) : 871. Apr. 193 5- 442.8 B526 

134. Kuptsov,A.I. Parvye selcktsionnye sorta gvaiiuly. Soviet Subtropics 

ho /7,pp.3 5-43, illus. July 1937. 20 Sul2 

Russian vdth English summary. Translated titletThe first selected 
varieties of guayule. 

135. Kusnetsova,M.S . Die kautschuk-ansammlung bei Parthenium argentum(?) 

im erston vegetations jahr . 3ot .Centbl.l65(ll/l2) :326. Oct. 
12,1933. 450 B65 

German. Translated title ".Rubber accumulation in Parthenium 
argentatum in the first year of vegetation. 

Abstract from original appearing ii Trudy n.-i .Laborat . 
Kauts chuktrust 4:18-26 , illus . 1930. (Not examined.) 

136. L.,M.P. Le guayule. Nature [Paris] no. 2770, pp. 296-300, illus. Oct. 

1,1927. 

Article in French. 

Discusses history,mld state, botany, production and location 
of rubber in the shrub; acclimatization in intensive cultivation 
and selecting varieties; mechanical cultivation and possibility 
of cultivation in Morocco(with map). 

Reprint in Re v. Gen. Caoutchouc 5(38):33-36. Jan. 1928. 

137. Labroy,0. Le caoutchouc de guayule. Etat present de 1 'exploitation 

du guayule an Mexique - Caracteres vegetatifs de la plant e - 
Parthenium argentatum et P.incanum - Rendement en caoutchouc - 
Socictes d' exploitation - Pro cedes -d 1 extraction - Chiffres de 
production et d' exportation - Valeur commerciale du guayule - 
Culture. Jonr.d'Agr.Trop.8(75):259-265. Sept .30,1907. 26 J82 
Bibliographical footnotes. 

French .Translated title ; Guayule rubber. Pre sent state of guayule 
cultivation in Mexico - Vegetative characteristics of the plant - 
Parthenium argentatum and P.incanum - Yield in rubber - Manufactur- 
ing companies - Extraction processes - Production and export 
statistics - Commercial value of guayule - Cultivation. 

138. Labroy,0. La situation du guayale - Declin da 1' Industrie - Penurie 

des matieres premieres - Essais culturauxr semis et groffage - 
Opinion d'un horticulteur . Jour .d'Agr.Trop. 8(86) r232~234. 
Aug. 31,1908. 26 J82 

French. Translated titletThe guayule situation - The industry's 
decline - Scarcity of rrw materials - Cultivation tests rseedings 
and cuttings - Opinion of a horticulturist. 



- 22 - 



139. Lapin,A.K. Prirodnyc resursy SSSR;kauchukonosy i guttaperchenosy 
SSM. Priroda 1936(7) rllO-123. July 1936. ! £10 P933 
'tLitcratura,"p.l23. 

Ruts: an. Translated title: Natural resources of U S .£ .R. : rubber- 
bearing and guttapercha-bearin y plants of Russia. 
Gostyrle, pp,120-121 . 

14.0. LebedeVjA.fi. Agr ot ekhni ka zakladki plaitatsii gvaiiuly. Soviet 
Subtropics np.^.pp 31-4-0, illu&. : Feb. 1937. 23 Sul2 

Russian, with Englp.sh summary. Translated title. -The- agrotechnical 
methods of guayuia growing. 

141. Lebedev,A.N. Gvaiiula v pitomnike. Soviet 'Subtropics no. 2, pp; 26-34, 

122,illus. Feb. 1933. 20 
, "Liters tura,»p. 34. 

Russian , with English summary. Translated title: Agricultural 
practices pf growing guayuia' seedlings. 

Increased rubber and r^sin yields were obtained by enriching 
soil with superphosphate containing 180 kg. of P2OC per hectare. 

Abstract in Ch em. Abs. 33 (20) -.8346-6347. Oct. 20, 1939. 381 Am33C 

142. Legros,J. Secondary rubber-yielding plants of the Caucasus region 

and of Central Asia. Internatl .Rev .Agr .Econ. [Rome}28:468T~481T . 
Dec. 1937. 241 In82 

"Publi ca ti ons consulted , "p . 48IT . 

Cont ent s : ( 1 ) S e c mdar y gr our ( 2 ) S ol ids go,( 3 ) Gua yul e , [ op . 473T-Z 77T ] 
(4) T? ucommia, ( 5)Tau-saghiz . Part 3 discusses varieties, seed 
production, yield in rubber, methods of cultivation, diseases and 
insect pests . . . . • . • 

Reprint in India Rubber Jour. 9 5 (10 ): 29 5-296, 298-300. Mar. 5,1938; 
95(11): 322-323. Mar. 12, 1938. 335.8 In21 

Abstract in ■ Chem.Abs. 32(20) : .8l85. Oct. 23,1938. 3 81 Am33C$ 
Brit .Chem. Physiol. Abs.B.Aopl.Chem., May 1938, p. 555. 382 B773 

143» Leo,A.de Osservazioni preliminari sul ".ruaiule" come pianta da caucciu. 

Palermo R.Ist.Bot.Lavori 10(3ol.) [78]-91,illus. 1939. 451 F17L 
Bibliographical footnotes. 

Italian. Translated title Preliminary observations on guayule as 
a rubber plant . 

Cultivation tests were carried out with seed of Russian and 
U.S .origin. Average quantity of rubber received did not exceed 
2% for the Russian and 3.15% for the U .S .type, compared with 
' 7-1056 yield in U.S. 

Abstract in Chem.Abs .34(20) :6973 - Oct. 23, 1940. 381 Am33C 

144. Lloyd, F.E. The guayule - a desert rubber plant. Pop. S ci. Monthly 

81(4):313-330,illuF. Oct .1912. 470 P8l 
An abridgment of item no. 145. 

145. Lloyd, F.E. Guayule (Parthenium argentatum Gray)a rubber-plant of the 

Chihuahuan Desert. Carnegie Inst .Wash. Pub. 139. 2l3pp . , illus . 
Washington, D.C.j Carnegie institution of Washington, 19U. 77 L775 
Biblio graphy , pp . 211-21 3 . 

Contents :Chap.l .Historical account ; Chap .2 .The environment: 



< 



- 23 - 



Chap. 3 .Description of the guayule; Chap .4 .Reproduction; Chap. 5. 
Anatomy and histology; Chap. 6. The resin-canals' in the guayule; 
Chap. 7. Hie origin and occurrence of rubber ; Chap. 3. Vegetative 
reproduction; ohap. 9 .The cultivation of guayule. 

"First discovered by Jja.3igelow,M.B. ,in 1352., while attached 
to the Mexican Boundary Survey, 'near Escondido Creek, Texas ' . 
It was first described by Professor Asa Gray some years later... 

1859... - • 

"Public attention was drawn to guayule rubber ^apparently for 
the first time in 1376, by an exhibition sent from Durango to 
the Centennial Exposition at Philadelphia .. .In the same year, 
according to thfe Mexican herald, the Natural history Society of 
Mexico took up the study of the plant." 

Abstract in India Rubber World 4-5(1) : 23-21, illus . Oct. 

1911. 305.8 In2; Pan Amer. Union 3ul .34(2) :177-195,illus . 
Feb .1912. 150.9 M7% Science , n . s ,34(833) : 765-767 . Dec.!, 
1911 [By J.E.Kirkwood] ' 470 Sci2; Chem.Abs .6 (4) : 501 . Feb. 20, 

1912. 331 Am33C 

(See item no. 144 for abridgment.) 

146. Lloyd, F.E. The guayule rubber situation. India Rubber >"orld 41(4): 

11 5-118, illus. Jan. 1910. 305.8 In2 
Bibliographical footnotes. 

Gives history and description of the plant and describes how 
the rubber is contained, the factory processes, the extent and 
future of the industry, and reproduction. 

147. Lloyd, F.E. Manufacture of rubber from the guayule plant. N.Y.Bot. 

Gard. Jour. 12 (137 )r 96-97. May 1911* 451 N48J 

Description of nine specimens received at the New York 
Botanical Garden, showing the processes of manufacture. 

148. Lloyd, F.E. Methods of vegetative reproduction in guayule and mariola. 

Plant vVorld 11(9) : 201-208, illus . Sept .1903 . 450 P69 
By seedlings and root-shoots ("ret onyos") . 

149. Lloyd, F.E. The Mexican guayul: and its product. Internatl .-Rubber 

Conf. 1st, London, Lectures on India-rubber . . .Proc .1908:126-1A1 . 
1909. 

Biblioe raphy, p . 140 . 

Gives botanical description and describes germination, the root- 
shoots, and the place of the rubber in the plant. 

150. Lloyd, F.E. Mode of occurrence of caoutchouc in the guayule, 

P.-rthenium argentatum Gray, and its function. Plant Physiol. 
7(1) :131-13S, illus. Jan .1932 \ 450 P692 
"Literature cited, "p. 137 . 

"The account which I published in 19!l(see item no,145)pf the 
mode of occurrence of caoutchouc in guayule^ ,.. is incorrect... 
The purpose of the present paper is to set the matter right, so 
far as I now understand it .In the guayule, as in some other 
rubber-bearing plants, the rubber occurs in the parenchyma cells 
and is thus segregated. In contrast with t his condition is that 
in the so-called latex-bearing rubber plants. such as Hevea... in 



- 24 - 



which the rubber is a constituent .. .of a white or colored milky 
fluid, which is stored in tubes from which, when opened, the fluid 
flows mori; or less freely. . .This general statement may now be 
extended to the gur.yule,f or . . .the fluid here is equally a latex 
confined to individual cells." 
Abstract in Biol . Abs . 7 (7 ) si 5 53 . A ug. /Sept .1933 . 442.8 3526 

151. Lloyd, F.E. Notes on the acclimatization and cultivation of the 

guayule (^arthenium argehtatum Gray). In Int rnrtl. Rubber Cong., 
4th, London, 1914. The rubber industry,being the official report 
of the fourth International rubber congress. .. [and ]the principal 
papers read at the [3d]Rubber congress,New York [1912], pp. 384-309. 
London, International rubber and allied trcdos exhibition, ltd. , 
[1914? ] 

Paper delivered at New York meeting .Describes experimental 
plantings in irrigated areas and naturally wet climates , showing 
that water-supply must be controlled .An abundance of water 
lessens the rubber content. 

Reprint in India Rubber world 4S( 5): 563-566, illus. Aug. 
1913. 305.8 In2. Correction in 49(l):20. Oct. 1,1913- 

152. Ll^yd, F.E. The propgation of guayule - a criticism. India Rubber 

World 45(4):164-165. Jan. 1912. 3^5.8 In2 
Bibliographical footnotes . 

Comparison of propagation by seed and by cuttings. 

153. Lloyd, F.E. The response of the guayule, r arthenium ar ~entatum,to 

irri gati on [abstra ct ] . S ci en ce , n . s . 31 ( 794 ) : 434-435 • Ma r . 13 , 
1910. 470 Sci2 

Presented at annual meeting of the botanical Society of America, 
Dec . 27-31, 1909 , Boston, Mass . 

Study of plants under irrigation at Cedros, Mexico, touching on 
rate of growth, anatomical changes, and amount of rubber secretion. 

Abstract in U .S .Of f .Expt .Stas .Sxp't .Sta .Rec.23(2) : 130 . Aug. 
1910. 1 Ex6R 

154. Lloyd, F.E. The rubber and resin content of the desert rubber-plant 

"guayule." in relation to rainfall. Soc. Chem. Indus. Jour. 33(3) : 
• 107-i09. Feb. 16, 191/. 382 M31 
Bibliographical footnotes. 

Presented at meeting of Canadian Section of the Society of 
Chemical Industry in Montreal, Mar .28,1913 • 

Plants that receive abundant soil- water produce less rubber, 
but the amount >f resin seems unaffected. 

Abstract in Chem .Abs .8(9) :1678 . Kay 10,1914. 381 Am33C 

155. Lloyd, F.E. Some features of the anat -r.y of guayule (Parthonium 

argentatum Gray) Plant World 11(8) r 172-179- Aug. 1908. 450 P69 

"The purpose of this present writing is to give a summary in 
English ?f ir.Ross 1 contribution (see item no.2l6)to our knowledge 
of the plant... and in addition to record in brief form the views 
of the writer." 



- 25 - 



156. London international rubber exhibition, [June 2/- July 14,1'911-] India 

Rubber Rev.ll (8) :40 5-418, illus ■. Aug. 15,1911- 

Description and illustration of the Continental Rubber Company 
of New York's guayule exhibit , pp. 4-08-409* 

157. Ludewig,H.J. Die kautschukkultur in Fexiko. Tropenpflanzer lA(10)t 

510-521. Oct .1910. 26 T75 
Bibliographical footnotes. 

German. Translated title i Rubber culture in Mexico. 

"A general and statistical account of. the rubber industry in 
Mexi co , including outline of propagation experiments with guayule 
.rubber being-conducted by E.A.Csffey at the Los Cedros planta- 
tion.". Abs.U.S.Off.Expt .Stas.^xpt .£ta.Rec.2A(l)$A3. Jan. 
1911. 1 Sx6R 

158. McCallum,W.B.' The botany and cultural problems of guayule-. Indus. 

and Engin.Chem. 18(11) :1121-112A. Nov. 1926. 38I J825 

Paper . presented, before the Division of Rubber Chemistry, American 

Chemical Society,at the 72d meeting, Phila., Pa. , Sept. 5-11,1926. 
Discusses botanical considerations; characteristics- of guayule 

shrub;rubber content; resin content; cultivation problems; germina- 
. tion of seeds;large-scale production of seedlinrs; maintenance of 

high rubber content. 

Reprint .in Rubber Age 20(3) s 129-132, illus . Nov. 10, 1926. 3058 R82 

Abstract in Chem.Abs .20(22.) : 38 Al. Nov. 20, 1926. 381Am'33C 

159. McCallum,W.3. The cultivation of guayule. India Rubber World 105(1): 

33-36. Oct .1941; 105(2) : 153-1 56, illus. , Nov. 1941. 305.8 In2 

Includes an historical account , general characteristics, problems 
■ • r .- of domestication, germination of seeds, production of plants for 

transplanting, production of high rubber- content, problems of guayule 
growing in the United' States. 

"Mien considering the amount of land available in the United 
States on which guayule will grow well, it does not seem an 
impossible task, or even an essentially difficult one, to produce 
within our own borders 25$ of our normal rubber needs* This would 
require, in general terms, 1,000, 000 acres of land, 200,000 of which 
would be harvested and replanted each "year » 1. During a period of 
about ten years there have been established' and maintained a 
series of 53 experimental stations of from one acre to five acres 
each, extending from southern Texas across to California ,and up 
the coast region and the San Joaquin and Sacramento valleys to 
Red Bluff. These stations. . .were dispensed with -only after the 
final results from each had been obtained. Thus. . .it is known fair- 
ly accurately just what guayule will do in the various regions. 
The greatest amount of available land is In southern Texas." 
.; - Abstract of material in Oct. issue in Chem.Abs .35(22) :8013 . 
Nov. 20, 1941. 381 Am33C 

160. McCallum,W.B. The genetic analysis of guayule (parthenium argentatum) 

under cultivation. Carnegie Inst .Wash. , Yearbook (191 5)14 ?98-- ! 
99. 500 C21 

"All attempts at cross-pollination between different varieties 
have thus far given no results," 



- 26 - 



161. MacDougal ,D.T . Can we grow our own rubber? Guayulo,?. native American ! 

rubber-producing shrub,is being cultivated on a large scale in 
California. Sci.Atoer.l39(l):l6--19, illus. July 1928. 470 Sci25 

Discuss. is iiaportance of rubber to U.S . , Intercontinental Rubber 
Company's successful introduction of yuo.yule^ cultivation and 
processing of the plant. . •; . 

.. ;, It is of interest to knov. r that 40,300 farmers and mechanics 

employed in guayule cultivation could meet the [rubber Jneed of 
the United States during the next 10 or 15 years." 

See also item no. 7, which is a sequel to this article. 

162. Macku,.Jan. Bude guayule c'eskoslovenskym ksucukem? Ceskoslov. 

Zeme'delec 16(25) : 296-297, illus . June 22,1934- 19- 5 C33 

Czech. Translated title :¥ill guayule be a Czechoslovakian rubber? 

163. Mackm, Jan. Kulturv Parthenium argontatum a. G. (guayule) v C SSR a . v 

vysledky pokusu v botanicke zahrade Iv'asarykovy university v Brne 
v roce 1936. Casove Otasky Zemedel .Agr. Topics no. 62, pp. 6-9, 
illus. June 1937. 19-5 C27 

Czech. Translated title: Cultivation of Parthenium argentatum 
A.G. (guayule)in Russia and resulting tests in the Botanical 
gardens of Masaryk University, Brno [Czechoslovakia], in 1936. 

164. The Madero guayule factories. India lubber World 39(4) :136, illus . 

Jan. 1909. • 305.8 In2 

Discusses the interests of the Kadero brothers in Mexico 
and gives a picture of their Compania Sxplotadora Coahuilense . 
.; factory at Parras; 

165. Fakagon, V.N. Kauchukonosy v subtropikakh . Soviet Subtropics no, 3, pp. 

44-48, illus* Mar. 1935. 23 SuI2 
■ , Russian. Translated title : Rubber producing plants in the sub- 

tropic s . ' ... 

Includes guayule. 

166. Maksimov., N.A.,Kuz'min,S .P'.,iand Ivanoya,V.I.' Matcrialy k fiziologLcheskoi 

kharakteristike guaiuly. Trudy Prikl .Bot ., Genet . , i Selek. (Bui. 
Appl. Bo t. , Genet .and Plant , Brceding)24(3) : 9-9-145, illus . 
1930. 451 R9 2 

Russian, with English summary. Translated title : Materials for the 
physiological characteristics of guayule. 

167. Mallory,!. D.. '. . .Mexican rubber supplies, a background report from L.D. 

Mallory, agricultural attache, 'Economic section, American embassy, 
Mexico,-D*F.Date of completion: December 29,1941. 14pp., processed. 

[Mexico? D.F., 1941] 

Discussion of guayule exports [and production], pp. 6~7;tables 
giving exports of guayule rubber [quantity and value,.by years 1935— 
1940, and by months, Sept .1939-Aug. 1941] p. 14 . 



- 27 - 



168. Manning, P. D.V. Metallurgical metSaods used in producing [guayule] 

rubber. Chem.& detail .Sngin. 38(3) :131-132,illus. Mar. 

1931. 381 212 

Description of agricultural and processing machinery used in 
'growing guayule and producing rubber from it. Shows similarity 
of machinery to standard ore-treating ■machinery. 

Partially reprinted in Sci .Amer.l47(2) slll,illus . Aug. 

1932. 4.70 Sci25 (Under title "Factory makes home-grown . . . 
rubber^ ;, si gned A.F.B[uchanan]) 

169. Marckwald,E. ,and Frank, Fr. Fin beitrag zur wertschatzung des 

guayrule(?)-kauts.chuks. Gummi Ztg. 18(32) :6 50-6 52 . May 6, 
1904. 305.8 G95 

Bibliographical footnotes. 

German. Translated title :A contribution on the value of gua yule- 
rubber. • ; . 

Gives uses to which guayule rubber has been put by German man- 
ufacturers . 

170. Martinez , Ifeximino . . . . Fl guayule... 35pp«,illus. Tacubaya, 

D.F. ,^ex.,Iraprenta de la Direccion de e studios geograficos y 

• climatologi cos ,192b. 73 J/36 

Bibliograf ia,pp . 33-34 • 
Article in Spanish. 

History, description, geographic distribution, soils and climates 
where it is produced: its enemies, how guayule is developed, 
' : ' production, propagation. 

Abstract in Biol. Abs. 1(7/8) rll76. No v. /Dec. 1927. 442.8 B526 

171. Martinez, k aximino. Los recursos forestalls en las regiones del 

secano de Mexico j informs sintetico del viaje de exploracion 

• que hizo el Sr . Prof's'nxiTrino Martinez $ a companado a la Comision 

Rusa en su expedicion por ol norte del pais... Mex. Forest 4(1/2): 
1-10 , il lu s . Jan . /Fob , 19 26 . 99 . 8 M 57 

Spanish. Translated title rForestal resources in the desert 
regions of Mexi coj report on the exploratory trip that Prof. 
Mzximino Martinez mace, accompanying the Russian Commission on 
its expedition through the northern part of the country. 

Guayule discussed, p. 10; illustrated, np.3,6-9 . 

172. Mashtakov,S.M. Gvaiiuly.... Kauchuk i Rezina no. 9, pp . 36-40. Sept. 

• 1939.. : . - 

Litera tura , p , 4.0 . 

Russian . Translated ti tl e : Guayule . 

Vicosimetric characteristics of rubber and physical -chemical 
constants of the resin of different forms and sorts of guayule 
(translated subtitle) . 

Abstract in Qiem.Abs. 34.(5) :1 514. Mar .10,1940 . 381 Am33C; 
Chem.Zentbl.lll(ll):1760. Mar. 13,1940. 384 C42 



- 28 ~ 



173. Tht. Mexican guayule j interest revives in this rubber producing 

plrnt of the prairies... Amor . Chamber of Con. of Fex.Jour. 
5(38) :3-6. Apr .1923. 

"Torreon, Gomez Pair cio,Saltillo, Vies ca and Cuatro Cieneges 
the principal centers of guayule production; how thj plant is 
gathered .and the. rubber produced; its principal uses; the industry 
promises l^rge prof its; government encouragement is needed and 
is suggest :d." 

17 4-. The I^exican guayule ;the cultivation of this shrub rubber in Mexico 
continues with government encouragement... Arcer .Chamber of 
Com. of Mex.Jour.6(50)s[8]~ll. Apr .1924. 

"How the guayule grows on the plains of I-.'exico and is milled 
for the market; the cost of production and the price; ma chin ery 
being used to plant and gather the shrub; report of the U.S. 
Department of Comr erce vpon the industry. " 

17$. Fexican substitute for rubber. India Rubber Forld 22(4) r236. July 
1930. 305,3 In2 

Rubber factory being established at fan Luis. Potosi,I-exico, 
apparently based on Prampolini -patent. "This composition is a 
substitute for India-rubber, •• md consists of gummy matter of 
the shrub called Eynantheroeae Foxicanas by botanists, and by 
the Indians, 'yule', copalin' , and 'iiguhito'." 

(See item no. 197 for identification of substitute as guayule . ) 

176. Fikhailov, N.M-. Gvaiiula v raionakh sukhikh subtropikov Srednei Azii. 

Soviet Subtropics no. 10, pp. 55-61. Oct, 193 5. 20 Sul2 
"Literatura,"p.6l. 

Russian. Translated title s Guayule' in the arid subtropical 
regions of Central Asia. 

177. Mindcrman , Earl . Guayule as domestic rubber source. Prog. Farmer 

(Tex.Ed.)57(2)t39,illus. Feb. 194 2. 6 T311 

"One company, greatly interested Sbt guayule, has spent more than 
a million dollars in an attempt to raise it scientifically on 
plantations in California, but its cost has remained too high - 
over 20 cents a pound - to compete with imported rubber .Still, 
encouraging progress has been made." 

178. Morpurgo, Giulio . Los succcdaneos de la .-omr. elastica y el guayule 

do Mexico. (Fonograf la publicada con motivo de Is inauguracion 
del primer muostrario.de 'productos de Mexico en Trieste, 1908) .. . 
Tr.por el profosor J'ario Calvino. Upp. Mexico, Irrpr. y 
fototipia de la Sccrotarie de f omento,1910. 77 F823 
Piblio araphical footnotes. 

Spanish. Translated title ^Rubber substitutes and the guayule 
of Mexico . (monograph published on the occasion of the inauguration 
of the first exhibit of Mexican products in Trieste, 1908) .. .Tr. 
by Prof.Fario Calvino. 

Original article appears in Italian in Pollettino Chimico 
Farmaccutico 47:327-333- [date?] (Not examined.) 



- 29 - 



179. Moshkin&,M.C. ; Strukturnye osobennosti g vainly kak kauchukonosa.. 

Akad.Nauk.S.5 .£ .R . Iz v . , Ser . Biol . (Acad. des Sci.U.R.S .S.Bul., 
Ser. Biol.) no./,, pp.6l4-620,illus . 1940. 511 Sa2B 
"Litcratura,<»p.6l9. 

Russian, with English summary. Translated title :Stru.ctural 
peculiarities of the rubber plant guayule. 

Abstract in Chem.Abs. 35(9) :2931. May 10,1941. 331 Am33C 

130. Millie r, Max.. [Guayule rubber industry of Mexico.] Kew Roy. Pot .Gard . 
Bui. I isc.Inform.no. 7, pp. 286-239. 1907. 451 K51B 

Tells of discovery of plant, processes of extraction and patents, 
qualities of the rubber compared with hevea. 

Reprinted,with slight omissions, in [Ot.Prit . ]Bd. Trade Jour. 
56(539) :632-634. Mar .23,1907. 256.03 T67J; India Rubber Jour. 
( n . s . ) 33 (9 ) s'4.96 . lay 6 , 1907 . 305 . 3 In21 

181. Nebovidsky, Henry. Le probleme de la culture des plantes a caoutchouc 
vu sous le jour des experiences acquises en U.R.F.S* Cong. 
Internatl.Tech.et Chim.des Indus. Agr., 5th, Sheveningue, 1937 . 
Compt. Rend. 3: 8^-90. 1938. 338 6765 

French. Iran slated title: The problem of cultivation of rubber 
plants seen in the light of experiences acquired in the U.S.S.R. 

Qua yule, pp. 37-33. . 

Abstract in Chem.Zentbl'.lll,pt .1(7) :1113 . Feb. 14,1940. 3 84 C42 

132. New. guayule factory opened at Salinas [ Calif .] Rubber Age 28 (10) $503, 

illus... . Feb. 2 5, 1931. 3 -'5.3 R82 

Plant opened by Intercontinental Rubber Company's subsidiary, 
American Rubber Producers, Inc., on Feb .6,1931 • "First time... that 
cultivated guayule has been harvested and milled on any commer- 
cial scale . " 

133. New guayule rubber process. India Rubber World 32 (.3) r 30 A. June 

1905. 305.8 In2 

Compania ^xplotadora de Hule formed in Mexico, to use Delafond 
extraction process .Article describes latter and also the process 
patented by Max Marx in England. • 

134. The new Mexican rubber. . India Rubber World 24.(3) :264. June 

1901. 305.8 In2 

Quotations from report by U.S. consul at Matamoras,Mex., 
P.lerill 'Griffith, on the plant known locally as "hule, "and called 
"Synanthcroeas Mcxicanas" in the Prampolini patent for rubber 
extraction. "This plant has not yet been identified botanically 
by any of the India Rubber 'World' s correspondents .. .The plant... 
no doubt is the same which Mr. John H.Cheever,of the New York 
Belting and Packing Co ., experimented with some twelve years ago." 
(See it en no. 107 for identification of plant as guayule.) 



- 30 - 



135. . A new. substitute for rubber. ,SgL Junes* 82(20) s309K310. May 19, 
1900. 470 Sci25 , ' • 

"A shrub growing in ccntril Mexico, arid known to the Indians 
by a variety of raap.es ->f which yule is one ... It docs not belong 
to the plants which yield milky juices, being a comparatively 
hard wood and growing as a small scrubby bush, but there is found 
within its bark and wood a large amount of yummy matter... The 
botanical name of this shrub is Synathereoeas - Mexicanas." 
Article describes the method of extraction. 

(See items no. 38 and 107 for identification of shrub as guayule.) 

186. Nikolaev, V. [F. ] Kul'tura kauchukonosnykh rasteni? na Chernomorskom 

poberezh'e. < [Leningrad JC-osud .Inst .Opytn.Agron.Izv. (State Inst. 
Expt .Agron. Annals) 5(6) :469~471. Nov. /Dec. 1927 . 106 R923 

Russian. Translated title : Cultivation of the rubber-bearing 
plants on the Black Sea shore. 
. Includes guayule. 

Abstract in U.S. Of f .Expt .Stas .Expt .Sta .Rec .60 ( 5) s/M. . Apr. 
1929 . 1 Ex6R 

187. Nikolaev, V.F. K morfologii i sistematike kauchukonosnago rasteniia 

guaiuly. Trudy Prikl .Bet ., Genet. ,i Selek. (Bui .Appl ,?.ot . , Genet . , 
and Plant Breeding) 22 (4) •209-276., illus . 1929. 451 R92 

Russian, with English summary. Translated titles The morphology 
and classification of the guayule plant. 

Abstract in Bot.Centbl .160(15) :478. . June 18,1931. 450 365; 
Biol .Abs .7(7) rl704. Aug. /Sept .1933 . 442.8 3526 

188. Nikolaev, V.F. ...Ihe singling out of botanical forms and selection 

in the rubber plant, guayule (Parthenium argentatum Gray) 
Vsesoiuzn.S- 1 ezd Genet., Selek. , Semen, i Plemenn.Zhivotn. Trudy 
. (U*S. S.R.Cong. Genet., Plant & Anim. Breeding Proc.)(l930)4 :243- 
250. 442.9 V96 

Russian (Russian title, preceding English, omitted .) 

189. Notes on sundry sub jects .Prospects for guayule rubber. India Rubber 

Jour.,(n.s.)33(4):183. Feb. 25, 1907. * 30 5.8 In21 

Compania Explotodora de Caucho i^exicrna has improved guayule, 
overcoming large percentage of resin and ash, presence of other 
impurities, and its intense smell. 

190. Olsson-feff er,Pehr . Rubber planting in Mexico and Central America. 

Straits Settlements .Bot.Ga.rd.Agr .Bui. of the Straits and Fed. 
Malay States(n.s.)6(l):l-31. Jan .190.7*'. 22.5 St 8 
Guayul c rubb or , pp . 29-31 • 

"As for the fear of. guayule filling the market to the exclusion 
of crude rubber. . .such an idea is hardly worth refuting. . .The 
quality... it very inferior, the rubber being very sticky and 
rapidly deteriorating. The market valuo is very low in comparison 
with... first class rubber... As a special product, the guayule has 
a market of its own." 



- 31 - 

191. The one region where wild guayule is found. Rubber Age 2C(3):12&, 

map." Nov. 10, 1926. 365.8 R82 

Gives names and locations of producing companies as shown on 
map . 

192. O'Neil backs guayule. Tire Rev.4l(ll)t42. Nov.1941. 305.8 In23 

William 0' Neil, president of General Tire and Rubber Co., is 
urging congressional action to underwrite guayule in the South- 
west .Information from California has convinced him that in two 
years there can be suffficient production for the country. 
Guayule can be processed without change of machinery. Recent 
yield has been stated as high as 2,850 pounds per acre, with a 
cost of 15-19 cents a pound. 

193- 0' Neil, William . Guayule "rubber" as an emergency crop; suggested 

provision in the U.S.A. for "time of war 11 . India Rubber Jour. 
69(1Q):378. Mar. 7, 192 5. 305.8 In21 
Editor 1 s comment , p . 369 • 

194- • 0rdynskii,M.S . Uzlovye voprosy mekhanizatsii kauchukonosnykli kul'tur. 

Mechanisierung der Sozialistischen Landw.no. 5, pp. 16-24.. ' May 
1932} ; no.8,pp,14-13,illus. Aug .1932* 58.8 M46 

Russian. Translated title sBssic problems of mechanization of 
rubbur farming. 

May issue mostly on tau-sagyza,with slight mention of guayule. 
August issue mainly on guayule. 

195. Our rubber problem; v:hat rubber resources remain open to us;what has 

the RFC done to build up rubber stocks; what can be done to 
stretch our rubber supply? U. 5 .Bur .Foreign and Dom. Com. Foreign 
Com .Weekly 6(3) :7 a 33-34. Jan. 17, 1942. 157.54 F763 
One ■ paragraph on .guayule 

196. Par due ci, Mario . Il Droblema della gomma elastica;le piante secondarie. 

Ingegnere ll(ll) :504-5l6,illus . Nov.1937; 13(i.e.l2)(l):2-7. 
Jan.1938. 

Bibi iograf ia> p . 7 . 

Italian. Translated title :The rubber prcblem;the secondary plants. 

Guayule, pp. 506-511. . .. 

Abstract in Engin. Index, 1938, p. 1059. 290.8 En32Ib 

197. Parker ,¥.E. The present status of guayule. India Rubber World 

Z5(4):l65-I66,illus. Jan. 1912. 305.8 In2 

Discusses regrowth of the shrub and future yields. 

198. Patoni, Carlos. Algunos datos sobre el guayule. . .urgencia de su 

cultivo. Alianza Cient.Univ.Com.Region.de! Estado de Durango 
[Mex . ]Bol .3(5) S193-209 . Oct. 31, 1912. 516 A14 

Spanish .Translated titletfome information on guayule .. .need 
for its cultivation. 

Discusses its name anc. history, rubber yield, need for cultiva- 
tion, which type of cultivation suits guayule. 




199- " Pat oni, Carlos. . ..~1 guayule (Parthenium argentatum A.lray);estudio 
del Ing. Carlos Patoni. 73pp . , illus . Mexico, Depart amento de 
tsllcres graficos de la Secretaria de foment o,19l6. 78 P27 
Article in Spanish. 

Describes plant, discusses its history, geogrsp hie distribution, 
quantity of rubber,harv s tin ;, extraction, reproduction, cultivation, 
and irrigation. 

200. Pearson, H.C. A journey through guayule land. India Rubber World 

35(6) :173-177, illus. I*ar.l907; 36(1) : 20 5-210, illus . Apr. 

1907. 305.3 Tn2 

Describes discovery and development, botany, "where it grows, the 
available supply, reproduction and cultivation, extraction, the 
patent question, guayule in the rubber factory . .lives the trip 
in detail : Mexico reached, guayule factories at Saltillo,Parras 
and the Maderos,the industry at Torreon,anri the visit to Gomez 
Palacio. : 

Abstract in U.S.^ff .ISxpt .Stas .Sxpt .£ta .Rec.l9(7) :653- Mar. 

1908. 1 Ex6R 

201. Pearson, H.C. .'Production of guayule rubber. U . £ .Bur . Foreign and 

Dom.Com.Com.Rpts.no. 149 7 pp. 1172-1134. ■. June .26,1918. 157.7 C76D 
Bibliographical footnotes. 

Describes Parthenium argentatum, P. incanum,and P.Lloydii, 
discusses development of the extraction process, ori ^in of the 
name, rubber content , habitat and parasitic enemies, gathering and 
transporting, price of shrub and cost of extracted rubber, supply 
of the shrub, regrowth in wild areas, processes for extracting, 
characteristics of the rubber, prices, statistics of production, 
and cult i vati on . 

Reprint in MexJJev. 2 (10 /ll)32-34, £L-43,illufli July/Aug.1918] 
2(12/13) r 31-32, illus. Sept ./Oct .1918. (With some additional 
material on cultivation.) Reprint , except last two paragraphs, 
in Mex.Com.and Indus .12(8) :9-15 • Aug. 1930. 287 AnOJ^j. . 
Partially reprinted in India Rubber i.orld 58(4.) : 579-581, illus ., 
with editor's comment, p. 577. July 1918. 305.8 In2; Internatl. 
Rev.Sci.and Prect .Agr . [Rome ]10(3) :2f S-293 . Far .1919. 241 In8: 
Pan Amef. Union Bui. 47(1) :88-95,i llus • Jul y 1918. 150.9 M76j 
India Rubber Jour. 57(4.) :1 64.. • Jan. 25, 1919. 305.8 In21. More 
fully reprinted, in India Rubber YJbrld; 59(5):244-246. Feb. 1919; 
59(6) :289-291, illus. Mar.l919| 60 (1 ) :347-348, illus . Apr. 
1919. 305.8 In2. Abstract in Ghem.Abs.l3(7;.t800. Apr. 10, 
1919 • 381 Am33C : . 

202. Pincus,J.W. The USSR grows its own rubberjthe Soviet Union is taking 

"vigorous, measures to find substitutes for on: of its few deficit 
raw materials. . c ovict Russia Today 10(2) :14-15,34,illus. 
June 1941. . 

Two new and improved varieties of Tuayule developed: Par thenium 
latifolium and P. augustof olium . 

Reprint in Rubber Age' 49(3) sl79-181, illus. June 1941. 305.8 R82 



- 33 - 



,203. A pioneer in the guayule field. India Rubber Vforld 36(6) :372, illus . 
Sept .1907. 305.3 In2 

Biographical sketch of Felix Hermann Kurd eke, retired U.S. 
naval officer, who stumbled onto guayule in Mexico, devised a crude 
extraction process, later developing the large Continental- 
Mexi can Rubber Co . 

204.. Pisarev, V.E. Selektsiia i priemy kul'tury guaiuly. Trudy Prikl. 

Pot . , Genet . , i Seiek . (Pul .Anpl.Bot .., Genet . , end Plant Breeding) 
2/ + (3):3-84,illus. 1930. 4.51 H92 
"Lit eratura , »pp . 80-82 . 

Russian, with English summary. Translated title t Breeding and 
methods of cultivation of the guayule. 

Abstract in Biol .Abs .11 (6) :1555 . June/July 1937. 4-42.3 B526 

20.5. Pisarev, V. [E. ] Ueber die methodik der ziichtung der kautschuklief ernden 
pflanze "guayule". Ztschr .f .Zttcht .Reihe A,PflanzenzT!Ichtung 
17(4) :533-6 21, illus. July 1932. A 50 Z36 
■'Literatur, "pp. 613-621. 

German. Translated title :Met hod of cultivating the rubber-bearing 
pla nt " guayul e" [ in Ru s s ia ] . 

Abstract' in Biol. Abs. 3(1) tl90. Jrr.193^-. 442.8 B526 

236.. Pisarev, V.E. Voprosy selektsii guaiuly v Soiuze S C R. Subtrcpics 
2(3A) =33- 50. Far. /Apr .1930. 20 Sul 

Russian, vdth English summary .Translated title tThe problem of 
guayule breeding in USSR. 

Describes experiments in the dry subtropical regions of Russia - 
Turkomania and Azerbaijan. 

207. Polhamus,L.G. ...Guayule. as an emergency source of crude rubber. 

4pp., processed. [Washington, U.S. Bureau of plant industry, 1941 ] 

'Guayule cultivation has been proved possible, and. only 
economic considerations have prevented' its development on a 
commercial scale in the United States... For long-term supplies, 
at costs which are competitive vdth those for rubber produced 
anywhere in the world, the Department of Agriculture believes 
that the development of Hevoa rubber culture in tropical 
America is the answer." 

Reprint in U.S. Congress .Senate . Committee on military affairs. 
Strategic ana critical materials [.guayule rubber ]Kearing. . .. 
(See item no. 263) 

208. Potentialities of guayule rubber from Mexico. U.S .Bur. Foreign and 

Dom. Com. Rubber News Letter 14.(17) :l62-loA. Sept .15,1940. 

Table and text, giving statistics on Mexican product ion, 1905 to 
date, and possibilities of exhaustive exploitation of present 
wild guayule stand in Mexico. 

209. Process of niayule extraction. Iht er na tl. Bur .'Amer. Republics Bui. 

27(2): 39A-39 5. Aug.1908. 150.9 M76 

Information furnished to U.S. consul at Fetamoras,Mex ., Clarence 
A. Tiller, by a chemist of Monterey. 



- 34 - 



210. The propagation of guayule. India Rubber World 45.(2^470-71. Nov. 

1911. 305.8 In2 

Describes experiments at Central Agricultural Station, Tan 
Jacinto, Mexico, in propagating guayule by cuttings. This is 
claimed much more certain than by seeds. 

211. Reeves, Raymond. Rubber from American lettuce fields;a promising 

source of supply. U.S. Bur .Foreign and Dom.Com.Dom. Com. 29(2) : 
12-14.. Jan. 8, 1942. 157.54 D713 

"Hera is a timely story of how American ingenuity and per- 
sistence is developing a domestic source of rubber. In the modern 
sense, the development is new. Lone, before Cortez entered Mexico, 
however, natives were producing gaming balls from rubber vhich 
they chewed from guayule. " 

212. Reko,V.A. Guayule, der mexikanische kaut s chukbaum . Pharm. Post .70(29) 

332-339. .July 17,1937. 396.8 P493 

German. Translated title tGua yule, the Mexican rubber tree. 

Gives description, ran,ee, including list of 8 existing species 
of Parthenium in Mexico, cult ivati on, manufacture of the rubber, 
guayule industry in Mexico, including a list of the guayole 
plantations . 

213. Ringle,Ruth. Rubber from western weeds. Survey Graphic 31(2): . 

74-78, illus. Feb. 1942. 280.8 C37G 

"The story of guayule, a tough desert shrub adapted to American 
soil and climate .Authorities say it can meet our rubber needs 
in a few years and that guayule rubber is cheaper than synthetic 
rubber. " 

21 L . Roldan, Angel. Nuevos datos acerca del cult ivo del guayule (Parthenium 
argentatum)en Tehuacan,ruebla . Mex.Forest .5(1/2) :12~1£, illus . 
Jan. /Feb. 1927. 99.8 M57 

Spanish .Translated title:Recent information in regard to the 
cultivation, of guayule (Parthenium argentatum) in Tehuacan,Puebla 
[Mexico ] 

Abstract in ^iol.Abs.2(l/2) -261. Jan. /Feb. 1928. 442.8 P-526 

215. Romagnoli, Mario . Sull ' opportunity di riprendere ed estendere la 

sperimentazione sul guayule nelle nostre colonie. Agr. Colon. 
[ltaly]29(6/7)s330-353. June/ July 1935. 26 Ag82 
Bibliografia,pp .352-353 . 

Italian. Translated title r Opportunity to resume and extend the 
experiments on guayule in our [Italian] colonies. 

Content, especially resin, of plants cultivated in Eritrea, with 
complete culture data. 

Abstract in Chem. Abs. 29(20) :7120. Oct. 20, 1935. 381 Am33C 

216. Ross,H. Der anatomische bau der mexikani s chen kautschukpflanzc 

"guayule, "Parthenium argentatum Gray. Deut.Bot .Oesell.^er.. 
26a(3):248-263,illus. Apr. 23, 190 8. 4 51 D/ + S 
Bibliographical footnotes. 

German. Translated title: The anatomical structure of the Mexican 



- 35 - 



rubber plant "guayule'l* 

Summary in English by Alfred Dominikus .'in India Rubber World 
3S(5):365- Aug.1908. 335.8 In2 

(See also item no. 15 5) 

217. Rubber grown commercially in the United States ; guayule production in 

Texas. India Rubber r ibrld 73(l)s7,xllus. Oct. 192 5. 305-3 In2 
Bibliographical footnotes. 

''The only place in the United States where rubber is produced 
commercially, is at Marathon, Texas , located .. .north of the big bend 
of the Rio Grande .. .Factory of the border Rubber Co." 

218. Rubber on bush es; experiments with guayulc in California prompt drive 

for federal aid for strategic . crop. Business Week no. 579, pp. 
44-45, illus. Oct. 5,1940.' 280.8 SyS 

Rep .Anderson makes plea to National Defense Advisory Commission. 

219. Rubber shrub. Newsweek 17 (10 ): 48-49, illus. Far .10,1941 . 280.8 Ne 

"Navy Department at its Mare Island laboratory near 
San Francisco .. .investigating the possibilities of guayulc... as 
a source of this essential raw material [rubber]." 

220. Rusby,K.H. The rubber plants of Mexico. Torreya 9(9) :177-134, illus. 

Sept. 1909. 450 T63 

Abstract of a lecture before the Torrey Club, Feb. 9, 1909 • 
Discusses three rubber producers r Cast ilia elastica, guayule, and 
euphorbia elastica.. 

221. Russell, M.W. Lc guayule (Parthenium argentatum Gray) Rev.de Bot.Appl. 

et d'Agr. Colon. 8(82) :445-447. June 1928; Addenda in 8(86)s724. 
Oct .1928. 26 R323 

Bibliograf ie , p . 447 . 

Article in French. 

Description, habit at, history, and cultivation. 

222. Sen Millan, J.M. La importancia del guayule para la produccion de 

goma. Hacienda 22(11) a332-333, iilus. Nov. 1927. 6 Hll 
Spanish. Translated title iThe importance of guayule for 

production of rubber. 

Description of plant., where grown, and comparison of the rubber 

product with that from Hevea. 

223. Saucedo, Vicente . Posibilidades de la industria hulera y guayulera en 

Mexico.. Fex. Forest 7(1):8-13. Jan. 1929- 99.8 M57 

Spanish. Translated title * Possibilities of the rubber and guayule 

industry in Mexico.. 

It would be possible to produce at least 50,000 tons of guayule 

rubber in the northern states. 

Abstract in Biol. Abs .3(9/11) : 2007-2008 . Sept './Nov. . 
. 1929. AA2.8 B526 



- 36 - 



224. Sauc belli, Vincent. Guayule rubber a home industry; recent findings 

by Dr.D.Spence show that .guayule rubber is a colloidal suspension 
in the plant .juices like latex of the Hevea tree - important 
developments folio:?. ' India' Rubber World 78(3) : 55-56, illus . 
June 1928. 3^5. 8 In2 

Includes discussion of 9r , V? # 8 .McCaHumf s work on propagation - 
machinery developed for all phases of the guayule industry. 

(See also item' ; r236) 

225. Sauchelli, Vincent . Machine grqwn rubber in the United States - 

rubber growing by American farmers - plant -breeding and mechanic 

• efficiency - America's answer to' cheap coolie labor. India 
Rubber World 75(2) :67-69, illus. Nov. 1926. 305.8 In2 

"New varieties ?:ave been developed "-rich are better yielders, 
wMch will be planted out, cultivated, and harvested by machinery. 
The areas capable 'of being utilized [are Jin all parts of the 
cotton v >elt and even in other sections of the South. 

"Three outstanding problems were solved: (1) The plant was made 
to reproduce by seed in a practical way on a large scale; (2)it 
was made to secrete sufficient rubber under conditions of forced 
• ■ • growth; and (3) the successful transplanting to the field, under 

control from nurseries." 

Partially reprinted in J' ex. Com. and Indus. 9(1) :9-H« Jan. 
1927. 287 Am3Mj 

226. Schidrowitz,i"hilip. Guayule in the past. India Rubber Jour .102(22) : 

3-4. Nov. 29, 1941. 305.8 In21 

Review of 1910 boom year rposition in 1910, occurrence and 
harvesting, preparation of rubber, how the future was regarded 
in the past, and capitol investment. ■ 1 

227. Schmid,L.and Stohr,R. Ueber das star in aus Parthenium argentatum. 

Deut . Chem . Gesell .Ber . 59 (7) 81403-1410 . July 7,1926. 384 P45 

German . Translated title: St ear in from Parthenium argentatum 
[guayule] . 

Includes description of the experiments .. 

228. Schoff elmayer, Victor . juayule called emergency crop in winter garden. 

Dallas Morning News, Dec .29,1941, (pt.2),p .3. 

Experts hav<j impressed upon Congress that guayule is best bet. 
Though California would take' the lead in growing this rubber 
substitute, Texas, New Mexico, and nrizona would also grow it. 
In Texas, Brewster, Pr.sidio, and Pecos counties should be good 
localities .Illustrations of machinery used in harvesting. Gross 
returns, ' 1' 7 5 per acre with rubber at 23 cents a pound .Measure 
before Congress provides for planting 45,000 acres. 

229. Sorges, Felice . Sul " guayule"; ricer che ed osservazioni su piante di 

Parthenium argentatum a eclimatate nel E. Giardino Colonials. 

• Palermo R.Oiard .Colori.Bol.8,pt.2('2) : 4 5-54. 1925. /.51 P172 

Biblio'grc;fia,p. [54] • 

Italian. Translated ti tie: Guayule ; research end observations on 
the plants, Parthenium argentatum, acclimatized in the Royal 



- 37 - 



Colonial Garden (Palermo, Italy) . 

Gives history, dimensions of the various parts of the plant, 
analysis of the plant, rubber and resin content, and discussion 
of guayule resin. 

230. Spence, David. [Address before American Chemical Society, Los Angeles, 

1930] [Abstract] Science (n. s . ) 72 (1872) : sup ,xii,xiv . Nov.l/,, 
1930. 470 Sci2 

Abstract also appears in Sci.^ews Letter 13(501) :313. Nov. 15, 
1930. 470 Sci24 

231. Spence, D [avid ] . The bacterial decompositon of the rubber in the latex 

of hevea in relation to the question of the function of the 
rubber in the living plant... and address delivered in Manchester 
before a joint meeting of the Society of Chemical Industry and the 
Institution ^of the Rubber Industry on July 24,1935- Res. Assoc; 
Brit. Rubber Mfrs .Inform. Bur . Jour. A (8 ): 87-91. Aug. 193 5. 

'■'A monthly record was .. .maintained over a period of years of 
the changes occurring in the total rubber in these [guayule] plants 
...The results of this work [show that j notwithstanding the 
diversified methods of investigation employed , every one of our 
tests demonstrated that the rubber was actually used by the 
guayule plant to a greater or less extent to meet its require- 
ments in its response to the stimulus of new growth." 

Abstract in Soc . Chem.Inaus. Jour .Chem. and Indus * 54(34) :766 . 
Aug. 23, 1935. 382 M3IC5 Chem.Ahs.30 (1):323. Jan. 10, 
1936. 381 Am33C 

232. Spence, David. The chemistry of guayule. Indus .and Kn gin. Chem. 18 ( 11) : 

112,6-1128. Nov. 19 26.' 38I J825 

■t'aper presented before the Division of Rubber Chemistry, 
American Chemical Society,at the 72d meeting, Phila ., Pa Sept . 
5-11,1926. 

Discusses rubber content of guayule shrub, separation of rubber 
from shrub, shrub deterioration in storage, experiments on shrub 
preservation and stabilization, ar,d the status of the guayule 
rubber industry. • . 

Reprint in A "ubber Age 20(3) :133-135,i Hus . Nov. 10, 1926. 
Abstract in India Rubber and Tire Rev. 26 (9) ;34-35, 39-40. Sept. 
1^26. 305.8 In23; Chem . Ab s . 20 ( 22 ) : 3841-3842 . Nov. 20, 
1926. 381 Am33C ■ : 

233. Spence, D[avid] Cultivation and preparation of rubber in the 

United States . Indus. and Lngin. Chem. 22(4) :38Z.-387,illus . 
Apr .1930. . 381 J825 

Address before California section of American Chemical 
Society, San Francisco, Calif . , Dec. 13,1929 . 

''A solution of the important problem of finding a source of 
rubber in this country has been undertaken in California [by 
the Intercontinental Rubber Co. ]in the cultivation and extraction 
of rubber from the Mexican guayule plant. This undertaking was 
begun about eighteen years ago and the experimentation has now 
reached the stage where a factory for the commercial extraction 



- 38 - 



of the rubber from this plant is in sight. The problem of rubber 
cultivation in the United States has been studied from various 
angles - botanical, chemical, agricultural, mechanical, and economic - 
and a brief outline of what has been accomplished along these 
lines is given." 

Partially reprinted in India Rubber Jour. 79 (13) :636,63s. May 
3,1930. 305.8 In21. .Abstract in Soc. Chem. Indus. Jour. Brit . 
' Chem: A'os '.E, June 13,1930, p. 520. 382 T31; Biol. Abs .5(11) :2W. 
Nov. 1931. 4.4.2. 3 B526; Chem. Abs .21 (11) r29l/ . June 10, 
'1930. 331 /4m33c 

23Z,. Spsn.ce, D [avid ]and Caldwell,, M.L. Determination of rubber in rubber- 
bearing plants, Indus. and En ;in. Chem. Analyt.jSd. 5(6) : 371-37 5. 
Itov.15,1933. 381 J825A 

"Literature cited, "p". 375 . 
, . "The- work .. .was undertaken as an essential. step towards the 
• ' Solution of some 'of the' complex problems in, the. production of 
rubber' from the guayule shrub .. .Hie authors method, while primarily 
developed for the analysis of gua yule, has been applied with 
success to the investigation of other rubber-producing plants." 

Partially reprinted in India Rubber lAorld 90(l')':A5-46. Apr. 
1934. 305.8 In2. Abstract in Chem. Abs. 28(1) :36 5-366. Jan. 
10,1934. 381 ,jh33C 

235. Spence,D[avid] and McCallum^v jr(Bt) ■'•'ho function of the rubber hydro- 

carbon in the living plant.' Inst. Rubber Indus. Trans .11(1) :119- 
134,illuL.' June 1935. 505.9 In7 

"The experimental study... of this report was undertaken on 
gua yule plants ... [and] carried out in the laboratories of the 
American Rubber' Producers at Salinas and at the Chemistry 
Department of Stanford University." 

Abstract in ^h em. Abs. 29 (22.) :3393-S39A. . Nov. 20,1935. 381 Am33f 

236. Spence, David. Recent scientific advances in 'connection with guayule; 

further research has establ3.sh.ed the important fact that the 
rubber in guayule shrub does, not exist in the cells in form in 
which it is recovered, but as a colloidal suspension in the plant 
Juice. Rubber i-ge 23(3) tl33-13A,'illus. May 10,1928. 305.8 R32 

"Comprises the greater part of a paper read before a meeting of 
the N.Y. group, Rubber Division, American Chemical Society, Apr .25, 
1923." ; ' 

Abstract in Chom. Abs. 22 (13 ) : 249 2-2493. July 10,1928. 381 Am33C 

(See also item no. 224) .... 

237. ' Sperice, D [avid ]anc 'Boone, C.E. 'Some vulcanization tests of guayule 

rubber. .. [U.S .] Natl. Bur ..Standard's TechtooL Paper, no .353- 3pp. 
Washington,^?.; 157.33 T22,v.22 

"This paper jives the res-alts of some, physical tusts of guayule 
rubber grown in both Mexico and California. The samples of guayule 
rubber were obtained from shrub -which had been harvested and 
treated, the rubber "being forwarded to the; Bureau of Standards. 
Figures are given showing the properties of different types of 
guayule rubber and several compounds made with standard plantation 



~ 39 - 



crapes-. 

"To tts were made using 'pure gum' , zinc oxide, and gas-black 
formulas and also in formulas where one-half the guayule rubber 
was replaced with plantation crepe. Some data are given on the 
aging properties of compounds based on eight months' exposure 
to the weather protected from sunlight. 

"The results indicate, that properly prepared, guayule rubber 
will compare favorably with plantation; He'vea rubber." 

Partially reprinted under title "Guayule rubber has commercial 
utility comparable with plantation crepe, "in India Rubber and 
Tire Rev. 27 (11 ): 26, 1,6. • No V. 192?. 30% 8 In23. Abstract in 
* ■• Rubber Age 22(3) :169. • Nov.10, 192-7. 305.3 R82; Soc.Chem. Indus. 
Jour. Brit. Chem.Abs.B, Apr. 13, 1928, p. 276. ' 382 M31; Chem.Abs. 
22(2) :333- Jan. 20, 1928. 381 Am33C 

238. Studi ed esperienzc sulla coltura dell© piante da gamma elastica in 

Sicilia. Palermo R.Orto Sot .Sol. 5(3/4-) :132-1'37 . Dec. 31, 
1906. 451 P17 

I talian. Translated' title iStudies and- experiments in the cultiva- 
tion of india-rubber plants in Sicily. 

Part I. II " vuavuic" ■(■Parth.;nium argentetum, A. Gray) , pp. 132-135 . 

239. Swett,C.E. Extractives from guayule (Parthenium argentatum) Jour. 

Indus. and Angin.Chom. 1(5) :315-316. Kay I9O9. 38I J825 

"It is undoubtedly the presence of a large quantity of resinous 
• matter associated' with "the rubber that enables the extractives 
to collect together as the wood is ground under water .. .Is there 
not a hint in this for' the collection of the rubber contents of 
the milkweed?" 

Abstract in Chem.Abs .3 (2/0:3012 • Dec. 20,1909. 381 Am33C 

240. Tavernetti,A.A. Iv'onterev County experiments, with rubber plant. 

Calif .Cult. 67(16) -.120. Oct. 16,1926. 6 C12 
■ • "After many years a strain of the guayule has been perfected 
- which will grow and produce rubber profitably oh certain soils 
in the coastal valleys of California .One of the first commercial 
acreages to be planted in California has been made by the 
• • Rubber Exploration ^o.near Salinas, where several hundred acres 
r of guayule are now growing." 

• 241. -Taylor, F.J. Uncle Sam's rubber farmer; through Dr .William B.McCallum's 

work, 40,000 farmers, each with 100 acres of guayule , could make 
us independent 01 foreign rubber sources. ■' Country Gent. 111(6): 
16, 57-58, illus; June 1941. 6 CG33 

Describes his work with the Intercontinental Rubber Company. 
''In improved varieties now undergoing selection, the rubber 
content runs up to 25 per cent;"' • •■ • • 

• 242. Terry, K.L. India rubber and its manufacture. 28 7 en., illus. . London, 

- • Archibald Nonstable & Co., ltd. ,1907. 305 T27 

Qua yule, pp. 55-56 of chapter on production of raw india-rubber. 
■. Includes an analysis by the author of a sample of the rubber. 



1 



- ,40 - 



2/3. Thone,F. Guayule rubber. Science 95(2456) :sup. p. 9 . Jan. 23, 
1942. 470 Sci2 

Describes advantage of resin containing guayule, over resin- 
free synthetic rubber , for processing in machinery made for 
hevea rubber , which has about 5 per cent rosin. 

244. [Thornbcr, J. J. ] Work with guayule. Ariz . Agr .Sxot.Sta. Ann. Rpt. 

■ (1911/12)23:673-674. 1912. 100 Ar4 

300 rooted plants set out in March 1911, and irrigated, showed 
encouraging growth until eaten back by jackrabbits.A second lot, 
seedlings, made fair growth. 

Abstract in U.S .Of f .Expt .Stas .Sxpt .Sta .Rec. 29(5) s443 . Oct. 
1913- 1 Sx6R 

245. Tower, Reginald. Guayule rubber. Kew Roy. Pot. Gsrd. Bui. Misc. Inform. 

no. 6, pp. 2 5 5-2 56. 190 8. 451 K51B 

Dispatch frore H.M. Minister to Mexico to the Secretary of State 
for Foreign -"-if airs. Quotes an American expert who claims that 
only about 400,000 tons of guayule are in existence, either stand- 
ing in the soil, at the plants, or in transit .Because of the slow- 
growing habits of the shrub, it is predicted the industry will go 
into decay. 

246. Treadwell, J.C. Ouayule rubber from Texas; factory at Marathon has 

taken full advantage of only guayule district on American side 
of the Rio Grande. Rubber Age 20(3) :1 39-140 ,illus . Nov. 10, 
1926. 305.8 R32 

Border Rubber Co. plant was built in 1907, operated until 1916, 
remained dormant until 1925, rehabilitated and operated continuous- 
ly until September 1926, when operations were suspended pending 
recovery in pries and demand for the product .Includes description 
of plant operations. 

247. U.S .Department of agriculture .Of f ice of information. ...Federal 

scientists speed rubber plant experiments. D. S, Dept. Agr. Off . 
Inform. for the Fress, Sept. 10, 193-4 • 5pp. , processed. [Wash- 
ington, 1934] 

"Experiments by the U.S .Department of Agriculture. .. have 
singled out as the most promising sources for domestic rubber: 
goldenrod, guayule . . .and hevea . " 

Reprint, with slight changes, in Rubber Age 36(l)s23-24. Oct. 

1934. 305.8 F82. Partially reprinted in Automotive Indus. 
71(13):377. Sept. 29, 1934; . Science /n.s.) 80(2073) r 261-262 . 
Sept. 21, 1934. 470 Sci2; Sci .Amer .152(2} :79, illus . Feb. 

1935. 470 Sci25 

248. U.S .Congress .House. ...A bill to provide for the planting of forty- 

five thousand acres of guayule in order to make available a 
domestic source of crude rubber for emergency and defense uses. 
U.S. Cong., 77th, 1st Sess. ,K.R.5030. 6pp. ' [Washington-, U.S. 
Govt . print . off . , 1941 . ] 

Introduced by %r . Anderson of Calif or nia, June 11, 1941, and 
referred to Committee on agriculture. 



249. U.S. Congress. House. ...A bill to provide for the planting of ' forty-five 

thousand acres of guayule in .order to make available a domestic 
' ' source of crude rubber for emergency and defense -uses . U.S. 
Cong.., 77th, 1st Sess . : ,.H.P,.62.62. 5pp. [Washington, U.S. Govt, 
print . of f ., 1941 ] 

Introduced by l-r .Anderson of California, Dec. '17,1941, and referred 
• • to the Committee on Agriculture. 

250. U.S .Congress. House." ...A bill to provide for the planting of guayule 

and other rubber-bearing plants and to make available a source 
of curde rubber for emergency and defense uses. U .S . Cong. ,77th, 
2d Sess. ,K.R. 6622. 5pp. [Washington, U.S. Govt .print '.off .,' 
1942 . ] 

Introduced by ivi r. Fulmer ,Feb .18, 1942, and referred to the 
Committee on Agriculture, . • • • , 

251. U.S .Congress .House. ...A bill to provide for the planting of guayule 

and other rubber-bearing plants and to make available a source 
of crude rubber for emergency and defense uses. U.S . Cong . ,77th, 
2d Sess., H.R. 6624. ■ 5pp. [Washington y U.S .Govt .print .off . ,1942 . ] 
Introduced by Mr .Anderson of California, Feb. 18, 1942, and referred 
to the Committee on Agriculture. 

252. U. S. Congress. House . . ...A bill to provide for the planting of seventy- 

five thousand acres of guayule or other rubber-bearing plants in 
order to make available a domestic source of crude rubber for 
emergency and defense uses. U.S. Cong., 77th, 2d Sess H.R. 6299 • 
5pp . [Washington, U.S . 3ovt . print . off . , 194.2 . ] ' 

Introduced by Mr. Anderson of California, Jan. 5, 1942, and referred, 
to the Committee on Agriculture. 

253. U.S. Congress. House. Guayule rubber. Cong. Rec. (Daily ed. )88(26) r 

1091-1120. Feb. 5,1942. 148.2 R24 

77th Congress, 2d session. ' 1 

Debate on and. passage with amendments of S. 21 52, the guayule 
rubber bill .Includes editorial from Dec. 10, 1941, San Francisco 
Examiner, statement by C.L.Cnapin .of Washington, D.C. , end a con- 
siderable amount of material on the rubber situation in general. 

254. U.S .Congress. House. Guayule rubber. Cong .Rec . (Daily ed .) 88(42) :1827- 

1828. Feb. 28, 1942. 148.2 R24 
77th Congress, 2d session. 

Debate on and final passage of S. 2282, the revised guayule bill. 

255* U.S. Congress. House. Committee on agriculture. Guayule rubber; hearing. . . 

seventy-seventh congress, second session, on H.R. 6299, a bill... 

Jan. 7, 8, and 13,1942. Serial F, printed for the use of the committee... 

113^p. Washington, U.S. Govt. print. off .,1942. 148.9 Ag77G 

Includes ljttors, reports, statements, etc .,by Rep . J. Z .Anderson, 
Paul H. Appleby, tienry G.Wtwater, E.B.Babcock, C.L.Baker, Elmer W. 
Brandos, John L.Co'llyer, Harvey S .Firestone, jr ., Rep .Dow Harter, 
Jesse H. Jones, P.W.Litchfield., W.H.Mason, Navy Department, E. A. O'Neal,,' 
W.0'Neil,and U.S. Tariff Commission. 



256. U .S ..Congress .House .Committee on agriculture. ...Guayule rubber. . . 

Report [to accompany 5.2152] U.S. Cong *, 77th , 2d Sess ,,H.R.Rpt .1685. 
6pp . [Washington, U.S. Govt . print . off . ,1942 ] 
Ordered to bo printed Jan. 27, 1942. 

2$7. U.S. Congress. House. Committee on agriculture. ...Guayule rubber... 

Report [to accompany S.2282] U.S .Cong. ,77th, 2d £ess.,K.R.Rpt .1339. 
' 2pp.' [Washington, U.S. (to vt .print .off .,1942] 
Ordered to be printed Feb. 27, 1942. 
Favorable action on the revised bill. 

258. U.S. Congress .Senate . ...A bill to provide for the planting of forty- 

five thousand acres of guayule in order to" make available a 
domestic source of crude rubber for emergency and defense uses. 
U.S.Cong., 77th, 1st Sess . ,S .2152. • 5pp. [Washington, U.S. 
Govt . print . of f . ,1941 ] 

Introduced by Mr. Downey, Dec. 22, 1941, and referred to the Committee 
on Military Affairs." ■ • - 

259. U.S .Congress .Senate . " ...A bill to provide for the planting of guayule 

and other .rubber-bearing plant s and to make available a source of 
crude rubber for emergency and defense uses. U.S. Cong., 77th, 
2d Sess., S.2282. 5pp. [iTashington, U.S. Govt. print .off .,1942.] 

Introduced by Mr . Downey, Feb .17,1942, and referred to the Committee 
on Military A f fairs ^'reported by the Senate Committee Feb'. IS; passed 
by Senate Feb . 19 ; reported by the House Committee on Agriculture 
Feb .27; passed by the House Feb. 23. 

Reprint, in •Cong. Ree..( Daily ed.) 88 (36) si 546. Feb. 19, 1942. 143.2 R24 

260. U.S. Congress Spnate. Investigation of rubber supplies and production. 

Cong. Rec. (Bi-weekly ed. ) 88 (2) : 506-508. 1942. 148.2 R24 
77th Co n g rcS s, 2d session, Jan. 20, 1942. 

Senate proceeding's including letter from Comptroller General 
L.C.Warren to Sen. La Folletto en S .21 52, the guayule bill 5 letter 
from former to Sen. Reynolds on same (both submitted by Sen. La Follettc^ 
. editorial, entitled "Who 1 s to blame for 'rubber crisis ' /'from 
New York Daily Mirror, Jan. 16,194 2; reprint of "Washington Merry-go- 
round',' column of Drew Pearson and R.S.Allen from the same edition 
of the Mirror (both foregoing, first of which mentions guayule, sub- 
mitted by Sen. Reynolds } with comments.)" 

261. U.S. Congress. Senate. Production -of rubber from guayule. Cong .Rec. 

(bi-weekly ed . ) 87 ( 24) sl036l~10'363 . 1942. " 148.2 R24 
77th Congress., 1st session, Dec. 23,1941, 

Debate on S.2152, the guayule rubber bill; passed over and placed 
. on the calendar. - 

262. U.S. Congress. Senate. Production of rubber from guayule. Cong. Rec. 

(Bi-weekly ed . )S3(1) :3S9-392 . • 1942. 14S.2 R24" 
77th Congress, 2d session, Jan. 15,1942. 

Debate on and passage, with (amendments, of -.21 52, the guayule 
rubber bill. . 



- 43 - 



,?63 . U.S .CongresiL.Senate. Production of rubber from gilayqlc'. Cong.Rec. 
, . (E&ily ed.)38( 28) til 59-1160. Feb. 9, 1942. 148.2 R24 
77th Congress, 2d. session, 

Final passage of S.2152, The guayule bill, with acceptance by 
Senate of House amendments. 

26^. U.S. Congress . Senate . Production of rubber from guayule . . . Cong.Rec. 
(Daily cd.) 88 (34) :1366-1367. Feb. 17, 1942. 148.2 R24 
77th Congress , 2d session. 

Includes President Roosevelt's veto message on S.2152, The guayule 
bill, consideration of former's recommendations for substitute bill, 
and Sen. Downey 1 s introduction of such a bill(S .2282) providing for 
cultivation in the western hemisphere, not United States alone. 

265. U.S. Congress. Senate. Committee on military affairs.- ..•.Guayule rubber... 

Report [to accompany S.2152] U.S .Cong. ,77th, 1st Sess . ,S .Rpt .924. 
3pp . [Washingt on,U.£. Govt . print . off . , 1941 ] > 
Ordered to be printed Dec. 23, 1941. 

266. U.S. Congress. Senate. Committee on military affairs. ...Guayule rubber... 

Report (to accompany S.2152] U . r \ Con;.; . , 77th , 2d Sess. ,S. Rpt. 935. 
4pp. [Washingt on, U.S. Govt .print .off .,1942] 
Ordered to be printed Jan. 7, 1942. 

267 . U.S. Congr e s e . Senat e . Committ e c on military affairs . ... Qua yul e rubber . . . 

Report [to accompany S.2282] U.S. Gong., 77th, 2d Sess., S. Rpt. 1099 . 
8pp . . [Washington, U.S. Govt .print . off . ,1942 ] 

Ordered to be printed Feb. 18, 1942. 

Favorable action on the revised bill. 

268. U.S. Congress. Senate. Committee on military affairs. Strategic and 

critical materials [guayule rubber] Hearing. . .seventy-seventh 
congress, first session, on S.2152, a bill. . .December 10,1941..; 
73pp. Washington, U.S. Govt .print .of f. ,1941. 148.7 Mi77St 

Includes statement by William H.Mason, of the General Tire & 
Rubber Co., Akron, 0.,.Dr .Elmer W.Brandes,U.S .Bureau of Plant Industry, 
Rep. John Z . Anderson , of California, and "Guayule as ?n emergency 
s our c e , "by I . G . Polhamus .(So e it cm no . 207 . ) 

269. U.S .Congress .Senate. Commit tee on military affairs i Strategic and 

critical material s[ guayule rubber ] Hearing. , .seventy-seventh 
congress, first session, on S.2152, a bill... Part 2. January 6,1942... 
pp. 75-83. Washingt on,U.S.:Govt. print. off .,1942. • 

Includes statements of Henry G.Wood, legislative counsel of the 
Senate, and Paul H.Appleby, Under Secretary of agriculture. 

270. U.S. President, 1933- (Roosevelt, F.D.} ...Planting of guayule and other 

rubber-bearing plants - veto mes sage. ..from the President... 
returning without approval. .. (S .2152) .. . U. S. Cong. > 77th, 2d Sess., 
S. Doc. 182. 3pp. [Washington, U.S. 'Govt, print. off .,1942] 
Dated Feb. 17, 1942. 

Appears in Cong.Rec. (Daily ed .) 88(34) :13&6-1367 • Feb. 17, 
1942 .« • 143.2 R24 



271. U.S. Tariff commission. . . .Rubber; possibilities of producing rubber 

in the United States and rubber conservation. 14pp., processed. 
Washington, D. C. , 1941 . 173 T17Rub 

Guayule, pp- 8-11, with slight mention elsewhere. 

"When guayule rubber is deresinated it is of the same quality 
as the lower grades of hevea rubber and can be used inter change- 
ably with them... The capital investment for agricultural, equip- 
ment , nurseries, buildings, maintenance shops, rubber extraction mills, 
and deresinating factories probably would amount to about 20 
million dollars for every 100,000 long tons of yearly productive 
capacity. " 

Abstract in India Rubber World 105(2) :156.. N 0 v. 1941. 305. 8 In2 

272. The use of guayule. India Rubber Jour . .(n.s . )41 (19) :10S5-1086 . May 

13,1911. 30 5.8 In21 

Describes processing and products that can be manufactured from 
guayule. 

273. The use of guayule rubber. India Rubber Jour .(n.s.) 32 (3) :137~133 • 

July 30,1906. 30 5.8 In2L 

Interview with Dr.viierncr Esch of Germany. Esch pointed out "that 
it was a curious fact that guayule, the cheapest of all genuine 
raw rubbers, was until recently unknown to many English rubber 
manufacturers 11 .Treatment different f romthat for Para is needed. 
Ebonite combs and shoes are being made from it. 

274-. Utilization of guayule refuse. Interna tl .Bur .Amer .Republics .Monthly 
Bul.23(5):1204-1205. Nov.l906. 150. 9 M76 

"Continental Rubber Company, of Mexico, is making experiments 
with the guayule plant, after the rubber has been extracted therefrom, 
in its application as fuel." 

275. Van der Linde, Harold. Guayule rubber. Soc. Chem. Indus .Jour .29(22) : 

1283-1284. ' ' Nov. 30, 1910;' Erratum, 3(1) :3. Jan .16,1911. 382 M31 

' Presented at meeting of Canadian Section of the Society of 
Chemical Industry in Toronto, ^ov. 6,1909. A description of guayule 
shrub, region in which it grows, and of other desert plants, with a 
brief history of industry and its present methods of operation. 

Reprint, with some omissions, in India. Rubber World 45(4) si 66-167. 
Jan. 1912. 305.3 In2. Abstract in ^hem.Abs. 5 (19) :3346 . Oct. 
10,1911. ' 381 Am33C 

276. Vavilov, N.I. Problema rastitel 1 nogo kauchuka v Severnoi Amerikej 

scwnremennoe sostoianie ispol ' zovaniia dikikh kauchukonosnykh 
rastenii i kul'tura ikh v Severnoi Amer ike pod uglom resheniia 
problemy rastitel ' nogo kauchuka v S.S.S.R. Trudy ^rikl.Bot. Genet., 
i Selek. ( Bui. Appl.Bot., Genet., and flant breeding) 26 (3): 201-267, 
illus. 1931. "451 R92 ' " 
Bibliographical footnotes. 

Russian .Translated title -Problem of rubber plants in North 
America; the contemporary condition of tuilization of wild rubber 
plants and cultivation in North America, from the standpoint of 
solving the problem of rubber plants' in U.S.S.R. 

Guayule , pp . 221-2 50 . 



~ 45 ~ 



277. -Vazquez E.,Rodolfo. ...La situacion economica de-la explotaeion del 

guayule en Mexico ;tesis que presenta el sr. Re-do If o Vasquez E., 
para obtener el titulo de licenciado en economia. 42pp . , illus. , 

processed. Mexico, 1938 • 
Bibliographical footnotes. 

Spanish-. Translated titlerThe economic situation of guayule 
production in Mexico; thesis presented by- Roldolf o Vasquez E., 
to obtain the title "licentiate in economics". 

278. Vel'tishchev,P.A. Opyliteli gvaiiuly v S rc R.- Priroda no. 4, pp. 52-53, 

illus. 1939. 410 P933 
,; Literatura/'p.53. 

Russian. Translated titlerThe pollinators of the r arthenium 
argentatum in USSR. 

279. Vel'tishchev,^.A. Vrediteli gvaiiuly v F C SH. Soviet S u btropics 

no. 9 : PP. 72-76. Sept. 1937. 20 2ul2 

Russian. Translated title lj - J est£ of guayule in the U.S.S.R. 

280. Wanted r rubber; areas attacked by Japan account for 97^ of supply;U.S. 

turns to synthetics , guayule, latin America. Business Week no. 645, 
pp. 17-1 -3, illus. Jan. 10, 1942. 280.8 Sy8 

Two paragraphs of text and two illustrations on guayule. 

281. The washing of guayule rubber. India Rubber Jour. (n.s. )33(6) :298-299, 

illus. Mar. 25, 1907. 305.8 In21 

282. Weber, CO. Guayrule-kautschuk in regenerierten kautschuk. Gummi Ztg. 

18(5) :83. Oct. 30, 1903. 305.8 095 

German. Translated title « Guayule rubbsr in regenerated rubber. 

283. Weeks, G.F. A Mexican industrial romance;the remarkable story of 

guayule, a desert shrub with a high rubber content. Amer. Forests 
and Forest Life 34(41 5) s411-413, 448, illus. July 1928. 99-3 F762 

284. Werkenthin,T.A.and others. Equipment for accelerated light aging of 

rubber and methods of evaluation of ultra-violet li dat and sun- 
light. • India Rubber World 105(2) -143-146, illus . Nov. 1941; 
105(3): 264-268, illus. Dec. 1941. 305.8 In2' 
Bibliography, p .268 . 

David Richardson, R.F. Thornley,and R.E.Morris, joint authors. 

"This article deals with the eauipment used in accelerated light 
aging, while the article .. .to appear in... Rubber Age (see item no. 
285) .. .treats of test results." 

Includes testing of guayule. Authors are all U.S. Navy Department 
men. , 

285. Werkenthin, T .A . and others. 'Light and accelerated light aging of rubber, 

synthetic rubber, and rubber substitutes. Rubber Age 50(2) :103- 
108. Nov. 1941; 50(3) :199-202, illus . Dec. 1941. 305.3 R82 

D.Richardson, R.F.Thornley,and R .E.Morris, joint authors. 

(See annotation of item no. 284) 



- 46 - 



286. VJMttlc soy, Theodore . Guayule rubber. Jour. Indus. and -ih'gin.Chem. 

1(4) z2A 5-249, illus. Apr .1909. • 331 J325 

Extraction of tne rubber and distribution of same in c?5 f f eront 
parts of the shrub. 

Reprint in India Rubber Jour . (n. e >. )37(12) :636-637. June 1/., 
1909; 37(13) :7o9. June 23,1909. 305.3 In21. Abstract in 
Chem.Abs.3(l2):lA71. June 20,1909. 3S1 .^33C 

287. \hy of guayule. Time; 38(26):53-54. Dec. 29,1941. 230. 3 T 

"The U.S.last week took its biggest single step yet tov.ard 
future s jlf-suff iciency in rubber. The Department of Agriculture 
. . okeyed a ?;25, 000,000 project to plant £5,000 acres in the fouth- 
Y/est with guayule . . .All the Big Four rubber companies . . .have used 
guayule for years, know it can go into 80% of their products." 

288. '.'VilcoXjU.V. Gua7/ule rubber and its production on a large scale. 

Bun's Int ernatl, Rev. 49 ?40-A2, illus. 1 lay 1927 

"Guayule grovdng shall be in the hands of the individual farmer 

and landorner whose plant-in j,, cultivating, and harvesting operations 

will be guided and financed by the central factory organization 

in his vicinity." 

Discusses recent \york of rubber cho-ists on vulcanization of 

guayule . 

Reprint in Pan Amer .Union Bui .61(9) :83 5-390, illus . Sept. 
1927. 150.9 M76j Ivex.Com.and Indus .9(10) rl6, 24-26 . Oct. 
1927. 287 Am3Mj 

239. b 'illienis,Iv"icha 5.1.. health in desert guayule. r unset 27(2) r202-205, 
illus. ug.1911. 

"During the past yeai experiments that resulted in highly 
gratifying achievements have been conducted in ?nd near Tucson, 
Arizona, by the botanist of the University of Arizona Agricultural 
■Experiment Station, Professor J.J. Thornbor , and by Mr .A r . H.Cole, head 
gertiner of the station on the desert and on land belonging to the 
Carnegie Desert Laboratory." 

290. Zelnicck,A .and Grunf eld,0. Kaucukodarna rostlina "guayule". 

Ceskdslov.Zemedelec 16 (IS) :1S9-19.0. Apr. 20,1934: 16(17) :202. 
Apr. 27, 1934. 19.5 C33 
Pouzit a literature , p . 202 . 

Czech .Translated title ;Tne rubber-bear in g plant "guayule". 

291. Zhuravel 1 ,K.C." Motody chorerikovaniia guaiuly ( Parthonium argentatum 

Gray) Trudy Prikl.Bot., jenot.,1 S .lek.Ser.A.Sotsialist . 
Rastenievod . (Bui . Appl . Hot . , Genet . ,and Plant Br :eding, Ter . A . 
. Ple.nt Indus. U.T. .5" .R.)no. 5/6, pp. I36-I/6, illus. 1933. 451 R92S 
Bibliographical footnotes . 

Russian. Translated title sMethods of propagation of P. argentatum 
by cuttings. 

abstract in Biol. j-.bs. 9(4) :874. Apr. 1935. 442.8 B 526 



~ in ~ 

LIST OF PATENTS 
ON GUAYULS AND OTHER RUBBER BEARING PLANTS 



685,033 - Extraction of gun from greascwood by bruising stalks and 
exposing to action 3f hydrocarbon solvents of rubber. 
Iseuod to P. P. Ellis and A. I. Werner. . 1901. 

697,957 - Extraction from greascwood plants by crushing, stepping, 
evaporation and replacing water by solvent of rubber. 
Issued to A. I. 'Jernqr and P. 3. mis. 1902. 

752.951 - Manufacture of rubber-like material from gummy particles 

in the plant Picradenia fl ir ibunda ut.il is . Issued to 
M. 3. Brownell . 190 A. 

752.952 - Ibid. Issued to M. G. Brownell. 190A . 

779,696 - Process ->f an apparatus for the separation and recover;/ 

of gum from rubber-plants (Euphorbiaceae or 3ther apetalous 
plants.) Issued to Ferdinand Ephrai'm. 1905 . 

795,363 - Dissolving rubber out \f plants of nettle family by action 
of solvent. Issued to G. H. Boeder, 1905. 

814,675 - Process of extracting rubber and the like from vrood. 
Issued to i. V. De La Gorte . 1906.. . 

824,116 - Obtaining caoutchouc, gutta-percha or chicle from plants 
by heating with soap. Issued to Edward Heber. 1906. 

886,A32 - Process of treating gums of Sapptaceae by washing, treat- 
ing with metallic nitrate, then in solution of metallic 
silicate and washing. Issued to. ¥. ¥. Dessau. 1903. 

89 A, 490 - Production of caoutchouc from plants by treating with 

STalfid 0.'" an alkaline earth ratal in sulfurous acid, treat- 
ing with alcohol and then with hydrocarbon. Issued to 
August Foelsing. 1903. 

931 . 120 - Extraction of gum or sap from vegetable sources by crushing 

separation by water and consolidation of rubber-like 
particles. Issued to F. H. Hunicke. 1909 . 

931. 121 - Same as 931,120, except with the use of steam before crush- 

ing of the plants. Issued t> F, IL. Hunicke. 1909. 

979,902 - Separation of rubber from mixtur.es by increasing buoyancy 
of rubber particles With some substance®* Issued to 
E. T. G. Van der Linde. 19*1.0 . 

982,373 - Rubbing the finely divided plant particles together under 
water sufficiently to disconnect it from the rest of 
source and causing to rise to surface. Issued to 
", T . A . Lawrence . 1911 . 



- 48 - 



1,058,186 - "Joed distillate and alkaline solution plus heat increases 
nerve of rubber. Issued to A. Lawrence. 1913. 

1,112,938 - Toughened and made mors workable by treatment with molten 
alkali metal or alloy. Issiidd to David Spence and 
W. F. Russell. 19U. 

1,159,137 - Extraction by welding the rubber filaments together by 
pressure and friction and the heat divcl^ped by the 
operation, a. voiding crushing and cutting. Issued t; 
Dominique Ve echini. 1915 « 

1,379,150 - l&iking. rubber-like substances from yucca plant using 
catalyst. Issued to J. C. V.'ichmann. 1921. 

1,435,360 - Ibid. Issued to J. Q.. "Vichmann. 1922. 

1,671,570 - Methods -of the removal of rubber from guayule plant and 
diagrams of preferred form of plant or mill and vertical 
section >f one of tie agitators. Issued to <i. H. Carnahan. 
1928. 

1,695,676 - Recovery of rubber from plants by compressed gaseous^ 
compounds and instant r no r-us expansion Where rubber 
compounds arc inclosed in plant cells. Diagrams of 
apparatus. Issued to IT, H. leandle.' 1928. 

1,730,702 - Process of making rubber-like materials from plants of 
the cactus family, the prickly pear, and ocotillo. 
Issued t^ J. C. Wichmann. 1929 . 

1,74-0,079 - Extraction of rubber from bark of plants after it has been 
removed and subjected to grinding treatment. Issued to 
' ' T. A. Edison, 1929 . ' 

1.753.184 - Preservation or stabilising agent to prevent deterioration 

of pi nt's rubber after harvesting. Issued to David 5 pence. 
1930. 

1.753.185 - Treatment of shrub and )f extraction to improve rubber 

and minimize deterioration. Issued to Dovid Spence. 1930. 

1,918,671 - Retts guayule shrub before mill. Issued to tiavid Spence. 
1933. 

2,119,030 - Guayule latex use pH of 7 and a buffer. Issued to 
David -pence. 1938. 



- 49 - 



INDEX 



Item 

Accelerators 

effect of 80 

Acclimatization See Cultivation 

Aging 284,285 

Agricultural products 

corporation and rubber 

exploration co 114 

Agrotechnical methods of 

growing 140 

Aldrich,E.B. " 43 

American chemical society.. 29,45 

152,230,2.32,233 
American rubber producers , inc . 84 

182,235 

See also Intercontinental 
rubber co . 
Ampar brand of guayule rubber 
Analysis of guayule rubber. 

Anderson, J. Z 17 

78, 218 , 243 , 249 , 2 51 , 2 52 , 25 5, 268 

L' Anglo Mexicana 88 

Appleby, P. H 255,269 

Arizona 23,53,72,111,114.228 

Agricultural experiment 

station 244 

Arizona. University 53,239 

Ash See under Content of shrub 

•'.«•••••••«•• 9 



8 

2/^.2 



Atwater,H.G 

Auchter,E.C 

Azerbaidzhan See Russia 



Babcock,E.B. 255 

Baker, C.L. ' 255 

Big bend manufacturing co.. 86 

Bigelow,J.M 63,80,145 

Bing,K. 4 

Boone, C.E 237 

Border rubber co. 98,217 

Botanical society of America 153 

Botany 46,67,69 

80, 113,127,136,137, 145,149,158,166, 187, 200 

flower 20,118,278 

internal structure ....30,145,150 
153,155,179,216,224,231,235,236 
See also Content of shrub 

B.randes,E.W 255,268 

Buchanan, A. E. 168 

Burbank, Alfred ....... 25 



Item 

Caffey,E.A 157 

Caldwell, M.L 234 

California 1,26,39,53,71,72,31 

108 , 111, 114, 161 , 177 ,192, 218 , 228 

Sscondido 23 

Los Angeles 57,230 

Mare island 219 

Monterey county 24>240 

Prado 25 

Red Bluff 159 

Sacramento valley 159 

Salinas 7,41,42 

59,81,84,105,182,23 5,240 

San Francisco 233 

San Joaquin valley 159 

Shafter 117 

California-Mexico land and 

eattle co 40 

Cal vino, Mario . 178 

Canada 

Toronto 275 

Carnegie desert laboratory 289 

Cedros ranch co 114 

Centennial exposition, 

Philadelphia, 1876 . ' 145 

Chapin,C.L 253 

Characteristics of the rubber 

See dualities of the rubber 

Cheever-, J.H. t 184 

Chemistry See Extraction, 

chemical; Manufacture into 

finished product 
Climate See under Cultivation 
Coahuila mining and smelting 

co 97 

Cole, if. H. 239 

Colloidal suspension 224,236 

Collyer,J.L 255 

ComparTia explotadora 

Coahuilense I64 

ComparTia explotadora de caucho 

mexicana 139 

Compania explotadora de hule 183 
Comparative qualities of the 

rubber See Qualities of the 

rubber 

Compounds 22,45,82,237,282 

Content of shrub... 2,3,158,215,229 



-.50 r 



It can 

Content of shrub - Continued 

ash V v.... 189 

res in. .36,154, 172 ,189 , 21 5, 229 , 239 
Cee rlso Extraction, 
deresination 
rubber. . 28 , 66 , 102 , 124, 131 , 132 , 13 5 
136, 145, 1/6,1/9, 150,151,1 53,154 
153, 159, 201, 231,232,234,236, 236 
Sec also' Yield 

Stearin .......... . 227 

Continent.:' 1 Mexican rubber 

co 114,128,203 

Continental rubber co .. .39,42,43,85 

■ 97,114 A 56 

Sec also Int continental 
rubber co . 
Continental rubber .company 

of exi co 27/ 

Copal in See Nomenclature 

Cortical tissue ....... 12/ 

Costs Sec Prices and costs 
Cross-pollination S , : under 

Cultivation 
Cultivati on 1 , 41 , 4 2 , 57 , 58 , 71 , 73 , 8 /• 
91,102,109,li/,,131,136,137,l/5 
1 59 , 161 , 170 , 201 , 221 ,22/., 233 , 276 

climate « 29,170,213 

cross-pollination .... 160 

cuttings 138,152,210,291 

fertilizer . , . . . . . 143. 

germination .......... 93,128,133 

138,142,152,158,159 ^225 
reproduction ....... '. . 25, 54 

gametophyte ......... 3.29 

soil 29,125,170,213 

transplanting • 225 

water 76, 151, 153,15/, 199 

yield See Yield 

See also Machinery/ gri cultural 5 

S j e also under nam D£ of 
forei ; n ' countries 
Cuttings See under Cultivation • • 
Cyt oombryoloc ical analysis 44 
Czechoslovakia 132,162,290 

Brno 163 



Delafond,Elias 95,133 

Deresination See under' 1 

Extrn ction 
Description of shrub (external) 18 
32, 50, 51, 52, 5/ , 57,62,73,79,86 
87,123,131,1/5,146,159 
170 , 199 , 212 , 221 , 222 , 229 , 27 5 



"Iter. 

Deterioration of shrub 

in storage 232 

Diseases and pe.sts ......... 29,56 

102,1/2,170,201,279 
Downey, Sheridan -. ..... .61,253,25.9,264 



Economics 9, 51, 52 

77,112,138,146,232 

capital investment ....... 226 

development of industry,. 9,12 

17,117,132,275 

marketing 14,81,288 

relationship to entire rubber 

industry 7,19,28,29 

72,106,114,120,130 

190,217,213,222,237,243 

rubber needs 96,103,122 

159,161 , 19 5, 211 , 213, 241 , 271 , 280 
See also Imports and exports* * 
I exi co, economics .; Prices, and 
costs " ' ... 

Endlich, Rudolph 5 

Eritrea ... 

cultivation 13,215 

Esch, Werner 273 

Exhibits 57,156,173 

Exports See Imports and exports 
Extraction . . 4, 23 , 32 , 33 , 51 , 52 , % , 57 
62,70,71,73,79,30,34,99,101 
102,114, 123 ,.126,136, 137, 146 - 
1/7, 161, 170, 173, 17/, 135,192 
199 , 200 , 201 , 209 , 212 , 226 , 233 ,246, 272 

chemical 15,19,232 

deresination 33,36,114 

machinery i63,22/ 

mechani cal. 15,16, 31, 55,65,105,239 
patents ..... 97,180,133,184,200 

refuse 274 

•washing 281 



Feeding of animals on. gua^le 64 
Fertilizer lee under Cultivation 
Firestone, H.S., jr. . ...... 255 



1 under Botany 



Flower 
Formulas fee Compounds 

Francois 

Frank ,Fr \ 

Fuel, vise of extraction. 

refuse as 

Fulmer,h.p 



67 
I69 

274 
2 50 



General tire end rubber co . 
See : ason, V7.H . ;Q ' Neil, 1 dllian 



It on?: 



Genetic analysis of guayule loO 

Germany" 169 

Germination See under 

Cultivation 
Government aid See under 

Mexico and United States 



Gray, Asa 63,80,36,145 

Great Britain 93,183 

Manchester 231 

Griffith, P. M 134 

Grunfeld,0 290 

Habitat 80, 114, 145,170,191,199 

230 , 201 , 212 , 221 , 226, 27 5 

Barter, Dow 2 55 

Harvard university ........ 80 

Harve sting 123 , 126 , 173 , 199 , 201 , 2 26 

See also ^chinery, agricultural 
Henderson, Leon ........... 96 

Hi story . . . 5, 13 , 19 , 28 , 53 , 54 , 62 , 63 , 71 
79,80,87,91,102,126,131,136,1/5 
146,1 59, 170, 180, 1CA, 198 
199 , 200 , 203 ,211, 221 , 229 



Kunicke,F.H 203 

Imports and exports .... 31,110,137 

See also under Mexico 

Inflorescences 130 

Institution of the rubber 

industry 231 

Intercontinental rubber co. 24 

30 , 57 , 72 , 73 , 81 



8/ , 10 5 , 114 , 117 , 161 , 177 ,233, 241 
See also Ameri can rubber 
producers , in« . 5 Continental 
Mexican rubber co . : Continental 



rubber co. 
International guayule 

rubber co 97 

International rubber congress 151 



International ' rubber exhibition 156 
Irrigation See under 

Cultivati on, water 
Italy 27,1^2,196 



cultivation ........... 143 

Palermo ... 229 

Trieste 178 

Ivanova, V.I. ............. 166 

Japanese colony in Lower 

California ....... 40 

Jiguhite Sei^ Nomenclature 



51 - 



Item 

Jon.- s,J.H. • . 255 

Kennedy . . 107 

K'ow Royal botanical gardens 93,107 

Kirkwood, J.E. 145 

Kuz 1 min,S ,t „ . . . 166 

LaFollette,R .M. , jr ...... 260 

Lawrence, 1 !.^ . 97 

Lee,C.A 57 

Libya 

cultivation 34 

Litchfield, P. Y/ 255 

Lloyd, ^.E. 54 

McCallum,^.B 19,71 

108,114,224,235,241 

FcCargar,F.S 57 

MacD-'Ugal,!).! .... 7 

Machinery, agricultural ... 14 



24,59,71,94,105 
136 , 163 , 174,194, 224 , 22 5 

Ma chinery( extra ct ion) See 
under Extra, ct ion 



Madcfo brothers 164,200 

Mahul acture into finished 

product .... 243,273 
Kariola Sec Varieties of shrub 

Marx,Adolpho 33 

Marx, Max 133 

Ma saryk uni v irsity, Brno , 

Czechoslovakia 163 

Mason, "7.H 255,268 

I ..tallur ipal methods of 

extraction 168 

Mexican boun.da.ry survey... 145 

Mexican Herald 145 

Mexico . . .5,19,31,32,33,47,62,72,75 
87,93,110,114,126,171 
178, 180, 203, 212, 237, 233 

Chihuahua ..... 4 , 109 

Chihuahuan desert ...... 145 

' Goahuila . .- *■;„„]. 103,109 

Cuatro Ci#negas 173 

cultivate on 54,103 

1 2 5 , 137 , 17/ , 193 , 199 , 200 

Cedros 153 

Los Cedros 157 

Mexico City 95 

San J-. 1 cinto 210 

TJe.ua can .... 214 

Za.cat-.cas ............ 123 



- 52 - 



Item 

Mexico - Continued 

Durango ....... 103,139,145 

economics ........ . ... . 33,190 

109,123,128,174,223,277 



Gomes cals do 

government aid ..... 
imports ard exports. 

Lc/fer California . . . 

Matamoras 

Monterey . 

Parras 

producing companies.. 



. J-YJ3 , 230 
. 173, 17Z 
31,33 
87,137,167 

. 40 

. 18Z,,209 
209 

. 16/., 200 
. 50, 5?, 88 



89,175,191,200 
See also names of 
individual firms 
production, statistics of 85 

109,167,208 

Saltillo 6,173,200 

San Luis Potosi ....... 109,1^5 

Torre on 31, 53, 8 5, 97,173, 2X 

Vie sea 

Zacatecas 

See also History 



173 
109 



Mexico .Central agricul~ 
• tural Station, 

San Jacinto 

Mexico. National medical 

institute 

Miller, A 

Mixing "with other rubbers 

See Compounds 
Morocco 

cultivation 

Morphology 

Morris, R^E. 



210 

5,6 
209 



136 
130 
234,235 



145 
63,228 



National defense See under U.i 
Natural history society of 

Mexi co 

New Fexieo 

New York ( City ) Botanical 

garden 147 

New York, daily mirror. . . . 260 

New York, times 10 

Nomenclature ........... 38,107 

175, 184, 185, 198, 201 

01s son-Sef f er , Pehr .. 107 

O'Neal, E. A. ... .. 2^5 

0' Neil/William 10,61,73,255 



Item 

Parenchyma ceils 150 

Partheniuin august >f ■'liurn 

See Varieties if shrub 
Parthenium h yst erophorus 

See Varieties of shrub 
Parthenium incanum Gray 

See Varieties of shrub 
Parthenium latifolium 

See Varieties of shrub 
Parthenium Iloydii 

See Varieties of shrub 
Patents, list of 

( See pages 47 and Z8 following item 

291); See also under Extraction 
Pennsylvania ■ - . • 

Philadelphia 145, 232 

Pests See Diseases and pests 
Physiological characteristics 166 

Plasticity 49 

Prampolini . 175,134 

Preserve ti on of 1 shrub 232 

Prices and costs 31 

51, 37, 96, 122, 177, 192,201*228 
Producing companies ...... 137,191 

£ce also names of individual 
firms 1 ; ^ee also \mder Ifexico 
Pr odu c t i on ( p r o c e s s i ng ) 

See Extraction 

statistics of . .98,110,137,167,201 
See also under Mexico 

Qualit i e s of th e rubb er . . 8 , 16 , 23 , 70 
72,00, j'9, 91, 172, ISO ; . 199 , 201,237 

odor 189 

t 

Reproduction of wild shrub 126, 1£5 
146 , 148 , 149 , 197 , 109 , 200 , 201 
Seo also under Cultivation 
Resin S :e under Content of shrv.b 

Rotonyos 148 

Retting See under Extraction, 
d^resination 

Reynold s,^.^ , . . . . 260 

Rj chardson, David 284,285 

Ross,H • 155 

Rubber content Sen - under 

Content of shrub 
Rubber exploration co. ... 240 
Russia ... 20, 21, AZ, 115, US, 129, 130 
139,165,166,176,187 
188 , 19 A, 202 , 276 , 273 , 279 



- 53 ~ 



Item 

Russia - Continued 
. Azerbaidzhan .......... .3-5,206 

Black S .ashore 166 

Crim ea ........ 56 

Cultivation 102,119,133,134,135 • 
" 143 , 141, 14.2,' 163 , 131 , 234 , 23 5, 291 



Turkomania 

Russian commission to lexico 

Salinas [Calif .] chamber of 

commerce . 

Salinas valloy[Calif . ] 

national defense committee 
San Francisco examiner ... 
San Jose [Calif . ]mercury-herald 
School lands 

Texas 

Sicily 

cultivation 

Society of chemical industry 



236 
171 



11,12 

57 
253 
13 

86 

238 
154 



Softening agent 
Soil See under Cultivation 
Fosnovots,A.A. . . . . 
Southern states . . . 
Southwestern states 
Spcncc, David ..... 
Stanford university 
Stearin See under Content 
of shrub 

Steshina ,N.A. 

Stohr,R. 



231,275 



44 

108,225 
41,159 
17,19,224 
235 



44 
227 



126 



Subsidy See Mexico, government 

aid; U.S ., government aid 
Supply >f wild shrub ..... 

132,203,231,245 

Synathereoeas lexicanas 
See Nomenclature 

Tests 45,72,163,237,204,285 

Texas 72,86,111,159 

Brewster co. 228 

Escondido creek 145 

Marath on 98, 217 , 246 

Pecos co 228 

Fresidio co 228 

Texas .University 

Texas rubber co 86 

Thorriber, J.J. 289 

Thornley,R.F 284,285 

Tires 7,8,43,45,96 

Torrey club 220 

Transplanting See under Cultivation 



Item 

U.S . 

....government aid . .. . . 1,9,11 

13,26,122,192,218 
legislation ' 37,61,68,78,90,123 
, - . 228,248-270,237 

national defense '. ' 9", 10 

* 83,122,123,159,193,219 
U.S .De-pt . of agriculture . . . 9,60 

107, 111, 117," 247 
Soe als o under U.S ., govern- 
ment aid, legislation 
U.S. Bur can of plant industry 9 

237,255,260 

U.S. Dept . of commerce ...... 174 

U.S. Comptroller general ... 260 
U .S. Federal guayule 

corporati on 90 

U.S. National bureau of 

standards 72,237 

U.S .NatS >nal defense advisory 

c ommission 218 

U.S. Navy dept 219 , 2 5 5 , 284 

U.S. Tariff commission 255 

Uses ...... 43,47,49,84,35, 101 

114,169,173,272,273,287 

5 oo also Tires 

Varieties of guayule rubber 16 
Varieties of shrub ...44,52,102,130 
133, 134, 136,137,142, 148 
160 , 172 , 188 , 201 , 232, 21 2 , 22 5 
Viscosimetric characteristics 172 
Vulcanization See Manufacture 
into finished product 

Yfellace,H.A 9 

Warren,L.C. 260 

Water Sec under Cultivation 

Western hemisphere 9,264 

Wilson, C. T. , co 98 

W-->od,H.-G.. 269 

Yeandle process 

of extraction 99 

Yield 1,80 

137,141,142,143,192 

197,193,199,225,241 

lule 

Sue Nomenclature 
Zeln£cck,A 121 



SOIL CONSERVATION SERVICE BIBLIOGRAPHIES 



No. 1. Wind erosion and sand dune control; a selected list of references. 
June 1940. 

No. 2. Personnel administration and personnel training. A selected list 
of references. Aug-,194-0. 

No. 3. Infiltration of water into the soil. Oct. 1940. 



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