- Clapp, Frederick Gardner; Bayley, William Shirley, 1909, Underground waters of southern Maine, with records of deep wells: Govt. Print. Off., Water Supply Paper 223, 268 p.,
- Covert, Clermont Calvert; Ellsworth, Clarence Eugene., 1909, Water-supply investigations in the Yukon-Tanana region, Alaska, 1907 and 1908 (Fairbanks, Circle, and Rampart districts): Govt. print. off., Water Supply Paper 228, 108 p. :illus., VII pl. (incl. 3 fold. maps) diagrs. ;23 cm.,
- Darton, Nelson Horatio, 1909, Geology and underground waters of South Dakota: Govt. Print. Off., Water Supply Paper 227, 156 p.,
- Dole, Richard B., 1909, The quality of surface waters in the United States, Part I, Analyses of waters east of the one hundredth meridian: Govt. Print. Off., Water Supply Paper 236, 123 p.,
- Fisher, Cassius Asa, 1909, Geology and water resources of the Great Falls region, Montana: Govt. Print. Off., Water Supply Paper 221, 89 p. :illus., maps (one fold.) ;23 cm.,
- Gannett, Henry; Leighton, Marshall Ora; Steuart, William Mott; Newell, F. H.; Mendenhall, W. C.; Stabler, H.; Parker, H. N., 1909, Papers on the conservation of water resources (reprinted from report of the National Conservation Commission, February, 1909): Govt. Print. Off., Water Supply Paper 234, 96 p.,
- Geological Survey (U.S.), 1909, Surface water supply of the United States, 1907-8: U.S. Govt. Print. Off., Water Supply Paper 242, 226 p. ;23 cm.,
- Gregory, Herbert E.; Ellis, Edwin E., 1909, Underground water resources of Connecticut, with a study of the occurrence of water in crystalline rocks: Govt. Print. Off., Water Supply Paper 232, 200 p.,
- Matson, George Charlton; Palmer, Chase., 1909, Water resources of the Blue Grass region, Kentucky, with a chapter on the quality of the waters: Govt. Print. Off., Water Supply Paper 233, 223 p.,
- Mendenhall, Walter Curran, 1909, Some desert watering places in southeastern California and southwestern Nevada: Govt. Print. Off., Water Supply Paper 224, 98 p. :iv. pl. (incl. fold. map in pocket) ;23 cm.,
- Mendenhall, Walter Curran, 1909, Ground waters of the Indio region, California, with a sketch of the Colorado Desert: Govt. Print. Off., Water Supply Paper 225, 56 p.,
- Phelps, Earle Bernard, 1909, The pollution of streams by sulphite-pulp waste, a study of possible remedies: Govt. Print. Off., Water Supply Paper 226, 37 p. :diagr. ;23 cm.,
- Phelps, Earle Bernard, 1909, The disinfection of sewage and sewage filter effluents, with a chapter on the putrescibility and stability of sewage effluents: Govt. Print. Off., Water Supply Paper 229, 91 p. :fold. pl. ;23 cm.,
- Stabler, Herman; Pratt, Gilbert H., 1909, The purification of some textile and other factory wastes: Govt. Print. Off., Water Supply Paper 235, 76 p. ;23 cm.,
- Stevens, John Cyprian, 1909, Surface water supply of Nebraska: Govt. Print. Off., Water Supply Paper 230, 251 p. :illus., VI pl., diagr. ;23 cm.,
- Waring, Gerald Ashley, 1909, Geology and water resources of the Harney Basin region, Oregon: Govt. Print. Off., Water Supply Paper 231, 93 p. :v pl. (incl. fold. maps, 2 in pocket) ;23 cm.,
