Contents.- v.1. Material handed to Engineering Advisory Committee February 5, 1930, prepared by T.B. Waddell.- v.2. Material on diversion of Trinity River water into the Sacramento River Basin, handed to Engineering Advisory Committee March 5, 1930, prepared by T.B. Waddell.- v.3. Memorandum of inspection trip and conferences of Engineering Advisory Committee, March 4, 5, 6 and 7, 1930, by T.B. Waddell.- v.4. Geologic report of Fairview Dam Site on Trinity River, March 17, 1930, by Chester Marliave.- v.5. Material on Oroville reservoirs, Narrows Reservoir, Parker Reservoir, submitted to Engineering Advisory Committee March 20, 1930.- v.6. Memorandum of inspection trip and conferences of Engineering Advisory Committee, March 20, 21 and 22, 1930.- v.7. Data on cores from Kennett Dam Site borings, April 1930.- v.8. Geological report on Upper and Lower Narrows Damsites on Yuba River, by Hyde Forbes, April 1930.- v.9. Geological report on Camp Far West and Parker Damsites on Bear River, by Hyde Forbes, April 1930.- v.10. Geological report on Oroville Damsites on Feather River, by Hyde Forbes, April 1930.- v.11. Geological report on Millsite Dam Site on Stoney Creek, by Hyde Forbes, June 1930.- v.12. Geological report on Capay Dam Site on Cache Creek and Monticello Dam Site on Putah Creek, by Hyde Forbes, June 1930.- v.13. Data on land classification and ultimate water requirements for Sacramento River Basin, submitted to Engineering Advisory Committee June 16, 1930 by T.B. Waddell.- v.14. Full natural runoff and ultimate impaired runoff of Sacramento River Basin streams, submitted to Engineering Advisory Committee June 16, 1930 by T.B. Waddell.- v.15. Memorandum of conference and inspection trip of Engineering Advisory Committee, June 19, 20 and 21, 1930, by T.B. Waddell.- v.16. Supplemental report: detailed geology of the Lower Colma Dam Site on the South Fork of the American River, by Hyde Forbes, July 1930.- v.17. Engineering Advisory Committee: Memorandum no.3 concerning the relation of Trinity River diversion into Sacramento River, the construction of the Whiskeytown reservoir on Clear Creek and the use of Kennett and Whiskeytown reservoirs to regulate the flow at Red Bluff to the irrigation demand, July 1930.- v.18. Water supply, irrigation yields of reservoirs, uses of water and surplus water for Sacramento River Basin and San Joaquin River Basin below Paradise Dam; submitted to Engineering Advisory Committee July 14, 1930 by T.B. Waddell.- v.19. Memorandum of conference, Engineering Advisory Committee, Sacramento River Basin Investigation, July 17-18, 1930, by T.B. Waddell.- v.20. Geological report on Kennett and Iron Canyon Dam Sites on Sacramento River, by Frederick Leslie Ransome, July 21, 1930.- v.21. Engineering Advisory Committee memorandum no.4 concerning the relation of Trinity River diversion into Sacramento River, the construction of the Whiskeytown reservoir on Clear Creek and the use of Kennett and Whiskeytown reservoirs to regulate the flow at Red Bluff to the irrigation demand, by J.D. Galloway, August 1930.- v.22. Preliminary geological report, Fairview Dam Site on Trinity River, by George D. Louderback, August 1, 1930.- v.23. Report on monthly distribution of return water in the Sacramento and San Joaquin Valleys, by Theo. Neuman and T.B. Waddell, August 28, 1930.- v.24. Geological report on the Sacramento Valley as related to ground water storage, by Hyde Forbes, September 1930.- v.25. Report to A.D. Edmonston, Deputy State Engineer in charge of Water Resources Investigation, on water conservation at Iron Canyon to regulate runoff below Kennett and Whiskeytown, by Fred H. Tibbetts, September 30, 1930.- v.26. Cost estimates for the major units of the State Plan in the Sacramento River Basin, by T.B. Waddell, October 13, 1930.- v.27. Data on Kennett, Table Mountain, Iron Canyon and Baird Dam Sites on Sacramento River, prepared by A.D. Edmonston, November 2, 1931. (v. 8-25 in Box 29; v. 26-37 in Box 30)