- Andrews, D. A., 1940, Structure contour map of the Byron anticline, Wyoming: Open-File Report 40-11, 1 p.,
- Bass, N. W., 1940, Important new oil pools in Osage Indian reservation, Oklahoma, may be discovered: Open-File Report 40-10, 5 p.; 1 map,
- Burbank, Wilbur Swett, 1940, Structural control of ore deposition in the Uncompahgre district, Ouray County, Colorado, with suggestions for prospecting: U.S. Govt. Print. Off., Bulletin 906-E, iv, 189-265 p. :illus., maps ;24 cm.,
- Butts, Charles, 1940, Montevallo-Columbiana folio, Alabama: Folios of the Geologic Atlas 226, 1 atlas (20 p., [9] leaves of plates) : ill., 7 col. maps ; 55 x 47 cm.,
- Capps, Stephen Reid, 1940, Geology of the Alaska railroad region: U.S. Govt. print. off., Bulletin 907, vi, 201 p. incl. illus. (map) tables. :front., 9 pl. (incl. 3 fold. maps, in pocket) ;23 cm.,
- compiled by Ayvazoglou, W., 1940, Geophysical abstracts 96-99, January-December 1939: U.S. G.P.O., Bulletin 915, 195 p. ;24 cm.,
- compiled by Ayvazoglou, W., 1940, Geophysical abstracts, 100-103, January-December 1940. Geophysical abstracts 100, January-March 1940: Bulletin 925-A, 1-50 p.,
- compiled by Ayzavoglou, W., 1940, Geophysical abstracts 96-99, January-December, 1939. Geophysical abstracts 96, January-March 1939: Bulletin 915-A, 1-48 p.,
- compiled by Ayzavoglou, W., 1940, Geophysical abstracts 96-99, January-December, 1939. Geophysical abstracts 97, April-June 1939: Bulletin 915-B, 49-86 p.,
- compiled by Ayzavoglou, W., 1940, Geophysical abstracts 96-99, January-December, 1939. Geophysical abstracts 98, July-September 1939: Bulletin 915-C, 87-132 p.,
- compiled by Ayzavoglou, W., 1940, Geophysical abstracts 99, October-December 1939 (Nos. 5162 - 5298): Bulletin 915-D, 133-195 p.,
- Darton, N. H., 1940, Some structural features of the Northern Anthracite coal basin, Pennsylvania: Professional Paper 193-D, p. 69-81,
- Dobbin, C. E.; Kramer, W. B., 1940, Geologic map and section of the Red Springs anticline: Open-File Report 40-2, 1 map,
- Fries, Carl, Jr., 1940, Tin deposits of the Black Range, Catron and Sierra Counties, New Mexico a preliminary report: U.S. Govt. Print. Off., Bulletin 922-M, iii, 355-370 p. :maps (part fold. in pocket) ;24 cm.,
- Geological Survey (U.S.), 1940, Spirit leveling in South Carolina, 1896-1938. Part 2, Southern South Carolina: Bulletin 890-B, 457-766 p.,
- Geological Survey (U.S.), 1940, Transit traverse in Missouri, 1900-1937. Part 4, Northwestern Missouri, 1911-37: Bulletin 916-D, 441-563 p.,
- Geological Survey (U.S.), 1940, Transit traverse in Missouri, 1900-1937. Part 5, Southwestern Missouri, 1900-37: Bulletin 916-E, 565-732 p.,
- Geological Survey (U.S.), 1940, Transit traverse in Missouri, 1900-1937. Part 6, Northeastern Missouri, 1900-37: Bulletin 916-F, 733-868 p.,
- Geological Survey (U.S.), 1940, Transit traverse in Missouri, 1900-1937. Part 7, Central Missouri, 1902-37: Bulletin 916-G, 869-1024 p.,
- Geological Survey (U.S.), 1940, Transit traverse in Missouri, 1900-1937. Part 8, West-central Missouri, 1906-37: Bulletin 916-H, 1025-1156 p.,
- Geological Survey (U.S.), 1940, Mineral production of Alaska in 1939: Open-File Report 40-12, 6 p.,
- Geological Survey (U.S.), 1940, Mining in Alaska in 1939: Open-File Report 40-13, 6 p.,
- Geological Survey (U.S.), 1940, Map of segregated Choctaw and Chickasaw Indian coal lands in Oklahoma: Open-File Report 40-4, 1 map,
- Geological Survey (U.S.), 1940, Geology of some dam sites on the Williams River and Kirkland Creek, Arizona: Open-File Report 40-6, 15 p. :ill.; 2 maps,
- Geological Survey (U.S.), 1940, Geology of several dam sites on tributaries of the Humboldt River, Nevada: Open-File Report 40-8, 21 p. :ill.; 3 maps,
- Geological Survey (U.S.), 1940, Water-power resources of Sandy River Basin, Oregon: Open-File Report 40-9, NA,
- Geological Survey (U.S.), 1940, Surface water supply of the United States, 1938, Part I, North Atlantic slope basins: U.S. Govt. Print. Off., Water Supply Paper 851, ix, 496 p. ;23 cm.,
- Geological Survey (U.S.), 1940, Surface water supply of the United States, 1938, Part II, South Atlantic slope and eastern Gulf of Mexico basins: U.S. Govt. Print. Off., Water Supply Paper 852, vi, 293 p. ;23 cm.,
- Geological Survey (U.S.), 1940, Surface water supply of the United States, 1938, Part III, Ohio River basin: U.S. Govt. Print. Off., Water Supply Paper 853, vii, 418 p. ;23 cm.,
- Geological Survey (U.S.), 1940, Surface water supply of the United States, 1938, Part V, Hudson Bay and upper Mississippi River basin: U.S. Govt. Print. Off., Water Supply Paper 855, ix, 350 p. ;23 cm.,
- Geological Survey (U.S.), 1940, Surface water supply of the United States, 1938, Part VI, Missouri River basin: U.S. Govt. Print. Off., Water Supply Paper 856, viii, 419 p. ;23 cm.,
- Geological Survey (U.S.), 1940, Surface water supply of the United States, 1938, Part VIII, Western Gulf of Mexico basins: U.S. Govt. Print. Off., Water Supply Paper 858, vii, 355 p. ;23 cm.,
- Geological Survey (U.S.), 1940, Surface water supply of the United States, 1938 : Part 12, North Pacific drainage basins: U.S. Govt. Print. Off., Water Supply Paper 862, v, 177 p. ;23 cm.,
- Geological Survey (U.S.), 1940, Surface water supply of Hawaii : July 1, 1937, to June 30, 1938: U.S. Govt. Print. Off., Water Supply Paper 865, iv, 122 p. :ill. ;23 cm.,
- Geological Survey (U.S.), 1940, Surface water supply of the United States, 1939, Part IV, St. Lawrence River basin: U.S. Govt. Print. Off., Water Supply Paper 874, vi, 213 p. ;23 cm.,
- Geological Survey (U.S.), 1940, Surface water supply of the United States, 1939, Part IX, Colorado River basin: U.S. Govt. Print. Off., Water Supply Paper 879, vii, 309 p. ;23 cm.,
- Geological Survey (U.S.), 1940, Surface water supply of the United States, 1939 : Part 11. Pacific slope basins in California: U.S. G.P.O., Water Supply Paper 881, xii, 446 p. :ill. ;23 cm.,
- Geological Survey (U.S.), 1940, Surface water supply of the United States, 1939 : Part 12, North Pacific drainage basins: U.S. Govt. Print. Off., Water Supply Paper 882, vii, 246 p. ;23 cm.,
- Geological Survey (U.S.), 1940, Surface water supply of the United States, 1939 : Part 13 Snake River basin: Govt. Print. Off., Water Supply Paper 883, viii, 315 p. :ill. ;24 cm.,
- Geological Survey (U.S.), 1940, Surface water supply of the United States, 1939 : Part 14, Pacific slope basins in Oregon and lower Columbia River basin: U.S. Govt. Print. Off., Water Supply Paper 884, vii, 220 p. ;23 cm.,
- Goddard, Edwin N., 1940, Manganese deposits at Philipsburg, Granite County, Montana, a preliminary report: U.S. Govt. Print. Off., Bulletin 922-G, iv, 157-204 p. :illus., maps (part fold.) diagrs. (part fold.) tables ;24 cm.,
- Goodrich, H. B.; Kennedy, L. E.; Leatherock, Otto, 1940, Subsurface geology and oil and gas resources of Osage County, Oklahoma. Part 6, Township 28 north, ranges 10 and 11 east, and township 29 north, ranges 9 to 11 east: Bulletin 900-F, 209-236 p.,
- Grover, Nathan C.; Parker, G. L., 1940, Summary of records of surface waters of Washington, 1919-35: U.S. Govt. Print. Off., Water Supply Paper 870, vi, 456 p., [7] leaves of plates :ill. ;24 cm.,
- Johnston, W. D., Jr., 1940, The gold quartz veins of Grass Valley, California: Professional Paper 194, 101 p.,
- Kennedy, L. E.; McClure, J. D.; Jenkins, H. D.; Bass, N. W., 1940, Subsurface geology and oil and gas resources of Osage County, Oklahoma. Part 4, Townships 24 and 25 north, ranges 10 and 11 east: Bulletin 900-D, 131-171 p.,
- Kennedy, L. E.; Shamblin, W. E.; Leatherock, Otto; Bass, N. W., 1940, Subsurface geology and oil and gas resources of Osage County, Oklahoma. Part 5, Townships 26 and 27 north, ranges 10 and 11 east: Bulletin 900-E, 173-208 p.,
- Kramer, W. B.; Frasier, G. G.; McMillan, R.; Cox, J. G., 1940, Geologic map and sections of the northern part of the Baxter Basin gas field, Sweetwater County, Wyoming: Open-File Report 40-3, 1 map,
- Kramer, W. P.; Dobbin, C. E.; McMillan, R., 1940, Geologic map of the East Lance Creek oil and gas field: Open-File Report 40-1, NA,
- Lang, Walter B.; King, Philip Burke; Bramlette, M. N.; McVay, Thomas Newkirk; Bay, Harry S.; Munyan, Arthur Claude; Mansfield, George Rogers, 1940, Clay investigations in the southern states 1934-35: U. S. Govt. print. off., Bulletin 901, x, 346 p. incl. illus., plans, tables, diagrs. :8 pl. (incl. 7 fold. maps (1 in pocket)) ;23 cm.,
- Lasky, Samuel Grossman, 1940, Manganese deposits in the Little Florida Mountains, Luna County, New Mexico, a preliminary report: U.S. Govt. Print. Off., Bulletin 922-C, ii, 55-73 p. :illus., maps (part fold.) ;24 cm.,
- Lemmon, D. M.; Dorr, John Van N., 1940, Tungsten deposits of the Atolia district, San Bernardino and Kern Counties, California: U.S. Govt. Print. Off., Bulletin 922-H, iv, 205-245 p. :maps (part fold.) diagrs. (part fold.) ;24 cm.,
- Lovering, Thomas Seward, 1940, Tungsten deposits of Boulder County, Colorado: U.S. Govt. Print. Off., Bulletin 922-F, iii, 135-156 p. :illus., maps ;24 cm.,
- McKnight, Edwin Thor, 1940, Geology of area between Green and Colorado rivers, Grand and San Juan Counties, Utah: U.S. G.P.O., Bulletin 908, v, 147 p. :ill., 2 folded maps ;23 cm.,
- Meinzer, Oscar Edward; Wenzel, Leland Keith; and others, 1940, Water levels and artesian pressure in observation wells in the United States in 1939: U.S. G.P.O. : For sale by the Supt. of Docs., Water Supply Paper 886, v, 933 p. :ill. ;23 cm.,
- Mertie, John Beaver, Jr., 1940, The Goodnews platinum deposits, Alaska: U.S. Govt. print. off., Bulletin 918, iv, 97 p. incl. illus., tables, diagr. :plates, fold. maps (2 in pocket) ;23 cm.,
- Morgan, Arthur M., 1940, Prospective water well sites in vicinity of Rangely, Colorado: U.S. Geological Survey], Open-File Report 40-14, [9] leaves :map ;27 cm.,
- Paulsen, C. G.; Barber, D. H.; Beckman, H. C.; Ellsworth, C. E.; Follansbee, Robert; Johnson, Berkeley; Saunders, J. L.; McCashin, C. E.; Spiegel, J. B.; Veatch, F. M., 1940, Surface water supply of the United States, 1939, Part VII, Lower Mississippi River basin: U.S. Govt. Print. Off., Water Supply Paper 877, vii, 379 p. :ill. ;24 cm.,
- Paulsen, Carl G.; Bigwood, B. L.; Harrington, A. W.; Hartwell, O. W.; Kinnison, H. B., 1940, Hurricane floods of September 1938: U.S. G.P.O., Water Supply Paper 867, ix, 562 p. : ill., maps ;24 cm. + plates in back pocket.,
- Peoples, Joe Webb; Howland, Arthur Lloyd, 1940, Chromite deposits of the eastern part of the Stillwater complex, Stillwater County, Montana: U.S. Govt. Print. Off., Bulletin 922-N, iv, 371-416 p. :illus., maps (1 fold. in pocket) ;24 cm.,
- Roberts, Ralph Jackson, 1940, Quicksilver deposits of the Bottle Creek District, Humboldt County, Nevada, a preliminary report: U.S. Govt. Print. Off., Bulletin 922-A, iii, 29 p. :maps (part fold.) diagrs. ;24 cm.,
- Roberts, Ralph Jackson, 1940, Quicksilver deposit at Buckskin Peak National mining district, Humboldt County, Nevada, a preliminary report: U.S. Govt. Print. Off., Bulletin 922-E, iii, 115-133 p. :illus., diagrs., maps (part fold.) ;24 cm.,
- Ross, Clyde Polhemus, 1940, Quicksilver deposits of the Mount Diablo district, Contra Costa County, California: U.S. Govt. Print. Off., Bulletin 922-B, iii, 31-54 p. :illus., fold. maps, tables ;24 cm.,
- Ross, Clyde Polhemus, 1940, Quicksilver deposits of the Mayacmas and Sulphur Bank districts, California, a preliminary report: U.S. Govt. Print. Off., Bulletin 922-L, iii, 327-353 p. :illus., maps (part fold. in pocket) ;24 cm.,
- Rynearson, Garn A.; Smith, Clay Taylor, 1940, Chromite deposits in the Seiad quadrangle, Siskiyou County, California: U.S. Govt. Print. Off., Bulletin 922-J, iv, 281-306 p. :illus., maps (part fold.) diagrs. (part fold.) ;24 cm.,
- Sayre, A. N., 1940, The ground-water supplies of the El Paso area, Texas: Open-File Report 40-16, 4 p.,
- Sayre, A. N.; Livingston, Penn, 1940, Memorandum regarding the El Paso water supply: Open-File Report 40-15, 13 p.,
- Short, Maxwell Naylor, 1940, Microscopic determination of the ore minerals: U.S. Govt. print. off., Bulletin 914, viii, 314 p. :incl. illus., tab. 14 pl. (incl. fold. diagr.) ;23 cm.,
- Spicer, H. Cecil, 1940, Estimate of depth to bed rock at some dam sites in the Gunnison, Little Colorado and Zuni River Basins, Colorado and Arizona, based on resistivity measurements 1938-1939: U.S. Geological Survey]], Open-File Report 40-7, 48 [i.e. 93] leaves :ill., maps ;28 cm.,
- Staack, John George, 1940, Spirit leveling in Utah, 1897-1938: U.S. Govt. Print. Off., Bulletin 912, 222 p.,
- Staack, John George, 1940, Triangulation in Utah, 1871-1934: U.S. Govt. Print. Off., Bulletin 913, iv, 170 p. :incl. illus. (maps) tables. pl. ;24 cm.,
- Staack, John George, 1940, Transit traverse in Missouri, 1900-1937. Part 2, South-central Missouri, 1908-37: Bulletin 916-B, 125-295 p.,
- Staack, John George, 1940, Transit traverse in Missouri, 1900-1937. Part 3, East-central Missouri, 1903-37: Bulletin 916-C, 297-439 p.,
- Thayer, Thomas Prence, 1940, Chromite deposits of Grant County, Oregon, a preliminary report: U.S. Govt. Print. Off., Bulletin 922-D, iv, 75-113 p. :fold. maps, diagrs. ;24 cm.,
- Wells, Francis Gerritt; Page, Lincoln R.; James, Harold Lloyd, 1940, Chromite deposits of the Pilliken area, of the Eldorado County, California: U.S. Govt. Print. Off., Bulletin 922-O, iv, 417-460 p. :maps (1 fold. in pocket) ;24 cm.,
- Wells, Francis Gerritt; Page, Lincoln R.; James, Harold Lloyd, 1940, Chromite deposits in the Sourdough area, Curry County and the Briggs Creek area, Josephine County, Oregon: U.S. Govt. Print. Off., Bulletin 922-P, iv, 461-496 p. :maps (part fold. in pocket) ;24 cm.,
- Wenzel, Leland Keith, 1940, Local overdevelopment of ground-water supplies, with special reference to conditions at Grand Island, Nebraska: U.S. G.P.O., Water Supply Paper 836-E, iii, p. 233-281, [6] folded leaves of plates :ill., maps ;24 cm.,
- White, Donald Edward, 1940, Antimony deposits of a part of the Yellow Pine District, Valley County, Idaho, a preliminary report: U.S. Govt. Print. Off., Bulletin 922-I, iii, 247-279 p. :maps (part fold.) ;24 cm.,
- White, Donald Edward, 1940, Antimony deposits of the Wildrose Canyon area, Inyo County, California: U.S. Govt. Print. Off., Bulletin 922-K, iii, 307-325 p. :illus., fold. maps, diagrs. (part fold.) ;24 cm.,
- Williams, Gordon R., 1940, Natural water loss in selected drainage basins: U.S. G.P.O., Water Supply Paper 846, iv, 62 p. :ill., map ;24 cm.,
- Williams, Gordon R.; Crawford, L. C.; Eisenlohr, William S., 1940, Maximum discharges at stream-measurement stations through December 31, 1937, with a Supplement including additions and changes through September 30, 1938: U.S. Govt. Print. Off., Water Supply Paper 847, iii, 272 p. :map ;24 cm.,
- Woodring, W. P.; Stewart, Ralph; Richards, R. W., 1940, Geology of the Kettleman Hills oil field, California; stratigraphy, paleontology, and structure: Professional Paper 195, 170 p.,
