Vol 1 has eleven folded maps and four folded charts inserted; vol. 2 has two folded maps inserted; vol. 3 has four folded maps inserted
"Harvey O. Banks, Director of Water Resources."
"This bulletin was prepared by Donald H. McKillop, Robert Y.D. Chun"--P. [xi]
v. 1. Text -- v. 2. Precipitation and water level data, central coastal and Los Angeles regions -- v. 3. Precipitation and water level data, Lahontan, Colorado River Basin, Santa Ana, and San Diego regions