Contents include: Memorandum report on water supply; well logs; maps; notes, etc.; and Hydrologic studies of the Putah Creek area in the Sacramento Valley, California, by Martin R. Huberty and C.N. Johnston; Chemical composition of water in the Putah Creek Basin, by C.S. Bisson and Martin R. Huberty both in Hilgardia(v. 14, no.3, October 1941); and Interpretation of groundwater elevation measurements, by C.N. Johnston and M.R. Huberty, reprinted from American Geophysical Union Transactions(1940).