The metadata below describe the original scanning. Follow the "All Files: HTTP" link in the "View the book" box to the left to find XML files that contain more metadata about the original images and the derived formats (OCR results, PDF etc.). See also the What is the directory structure for the texts? FAQ for information about file content and naming conventions.
A 2d edition was published 1903 (303 p., 23 pl.)
At head of title: Senate
Contains Senate report no. 2380, 56th Cong., 2d sess., Feb. 19, 1901, submitted by James McMillan, entitled "The relative merits of the mechanical and the slow sand systems of filtration for the water supply of the District of Columbia". Also, statements, papers and reports by various authorities on filtration of water supplies