- Adams, John Wagstaff; Stugard, Frederick, Jr., 1956, Wall-rock control of certain pitchblende deposits, in Golden Gate Canyon, Jefferson County, Colorado: U.S. Govt. Print. Off., Bulletin 1030-G, p.187-209, ill., map (1 fold. col.in pocket) ;24 cm.,
- Andrews, David A.; Hi, Cheong Chang, 1956, Coalfields of the Republic of Korea, Part 1: Chapters A and B: Bulletin 1041-A,B, p. 1-6 and p. 7-10,
- Barnes, Farrell F.; Payne, Thomas G., 1956, The Wishbone Hill district, Matanuska coal field, Alaska: U. S. Govt. Print. Off., Bulletin 1016, 88 p. illus., maps. ;24 cm.,
- Barth, Tom. F. W., 1956, Geology and petrology of the Pribilof Islands, Alaska: U.S. Govt. Print. Off., Bulletin 1028-F, p.101-160, ill., maps (2 fold. col.in pocket) ;24 cm.,
- Bergendahl, M. H.;, 1956, Stratigraphy of parts of De Soto and Hardee Counties, Florida: U.S.Govt.Print.Off., Bulletin 1030-B, p. 65-98, ill., map, plates (in pocket) ;24 cm.,
- Bromfield, C. S.; Shride, A. F., 1956, Mineral resources of the San Carlos Indian Reservation, Arizona: Bulletin 1027-N, p. 613-691,
- Bush, Alfred Lerner; Stager, Harold K., 1956, Accuracy of ore-reserve estimates for uranium-vanadium deposits on the Colorado Plateau: U.S. Govt. Print. Off., Bulletin 1030-D, p. 131-148, ill., map (1 fold. col. in pocket) ;24 cm.,
- Byers, F. M. Jr.; Sainsbury, C. L., 1956, Tungsten deposits of the Hyder district, Alaska: U.S. G.P.O., Bulletin 1024-F, p. 123-140, ill., maps (some col., folded) ;24 cm.,
- Cannon, H. L.; Starrett, W. H., 1956, Botanical prospecting for uranium on La Ventana Mesa, Sandoval County, New Mexico: Bulletin 1009-M, p. 391-407,
- Carr, Wilfred James; Alverson, Douglas C., 1956, Stratigraphy of middle Tertiary rocks in part of west-central Florida: U.S. G.P.O., Bulletin 1092, 111 p. :ill., maps ;24 cm.,
- Chew, Randall T., 1956, Study of radioactivity in modern stream gravels as a method of prospecting: U.S. Govt. Print. Off., Bulletin 1030-E, p.149-169, ill. (1 fold in pocket) ;24 cm.,
- Coats, Robert Roy, 1956, Geology of northern Adak Island, Alaska: U.S. Govt. Print. Off., Bulletin 1028-C, p.45-67, ill., map (1 fold. col. in pocket) ;24 cm.,
- Coats, Robert Roy, 1956, Geology of northern Kanaga Island, Alaska: U.S. Govt. Print. Off., Bulletin 1028-D, p.69-81, ill., map (1 fold. col. in pocket) ;24 cm.,
- Coats, Robert Roy, 1956, Reconnaissance geology of some western Aleutian Islands, Alaska: U.S. Govt. Print. Off., Bulletin 1028-E, p.83-100, ill., maps (1 fold .col. in pocket) ;24 cm.,
- Deul, Maurice; Annell, C. S., 1956, The occurrence of minor elements in ash of low-rank coal from Texas, Colorado, North Dakota, and South Dakota: U.S. Govt. Print. Off., Bulletin 1036-H, p. 155-172, ill. ;24 cm.,
- Duncan, Helen, 1956, Ordovician and Silurian coral faunas of western United States: U.S. G.P.O., Bulletin 1021-F, p. 209-236, 14 plates :fig., plates ;24 cm.,
- Dutro, J. Thomas, Jr., 1956, Annotated bibliography of Alaska Paleozoic paleontology: U. S. Govt. Print. Off., Bulletin 1021-H, p. 253-287, map (fold. in pocket) ;24 cm.,
- Flint, A. E.; Brown, C. E., 1956, Exploratory drilling for evidence of zinc and lead ore in Dubuque County, Iowa: Bulletin 1027-K, p. 471-499,
- Foshag, W. P.; Gonzales, Genaro R., 1956, Birth and development of Paricutin volcano, Mexico: Bulletin 965-D, 134 p.,
- Foster, Margaret Dorothy, 1956, Correlation of dioctahedral potassium micas on the basis of their charge relations: U.S. Govt. Print. Off., Bulletin 1036-D, p. 56-67, ill. ;24 cm.,
- Freeman, Val L.; Hilpert, Lowell S., 1956, Stratigraphy of the Morrison formation in part of northwestern New Mexico: U.S. Govt. Print. Off., Bulletin 1030-J, p. 309-334, ill. ;24 cm.,
- Frondel, Clifford; Riska, Daphne; Frondel, Judith Weiss., 1956, X-ray powder data for uranium and thorium minerals: U.S. Govt. Print. Off., Bulletin 1036-G, p. 91-153 ;24 cm.,
- Gair, Jacob Eugene; Wier, K. L., 1956, Geology of the Kiernan quadrangle, Iron County, Michigan: U. S. Govt. Print. Off., Bulletin 1044, 88 p., illus., maps (part col.) ;24 cm.,
- Gillerman, Elliot; Whitebread, D. H., 1956, Uranium-bearing nickel-cobalt native silver deposits, Black Hawk district, Grant County, New Mexico: Bulletin 1009-K, p. 283-313,
- Gott, Garland Bayard, 1956, Inferred relationship of some uranium deposits and calcium carbonate cement in southern Black Hills, South Dakota: U.S. Govt. Print. Off., Bulletin 1046-A, p. 1-8, ill. ;24 cm.,
- Grantz, Arthur, 1956, Magnetite deposits at Tuxedni Bay, Alaska: U.S. Govt. Print. Off., Bulletin 1024-D, p. 95-106, ill. ;24 cm.,
- Gulbrandsen, Robert A.; McLaughlin, K. P.; Honkala, F. S.; Clabaugh, S. E., 1956, Geology of the Johnson Creek quadrangle, Caribou County, Idaho: U.S. Govt. Print. Off., Bulletin 1042-A, p. 1-23, diagr. (fold. in pocket), maps (1 fold. col. in pocket) ;24 cm.,
- Hansen, Wallace R., 1956, Geology and mineral resources of the Hudson and Maynard quadrangles, Massachusetts: U. S. Govt. Print. Off., Bulletin 1038, 104 p. illus., maps (3 fold. col. in pocket) diagrs. ;24 cm.,
- Harrison, Jack Edward; Wells, John David, 1956, Geology and ore deposits of the Freeland-Lamartine district, Clear Creek County, Colorado: U.S. Govt. Print. Off., Bulletin 1032-B, p. 33-127, ill., maps (10 fold. col. in pocket) ;24 cm.,
- Hosterman, J. W., 1956, Geology of the Murray area, Shoshone County, Idaho: Bulletin 1027-P, p. 725-748,
- Huddle, J. W.; Jacobsen, E. I.; Williamson, A. D., 1956, Oil and gas wells drilled in southwestern Virginia before 1950: Bulletin 1027-L, p. 501-573,
- Jaster, M. C., 1956, Perlite resources of the United States: Bulletin 1027-I, p. 375-403,
- Karlstrom, Thor N. V., 1956, The problem of the Cochrane in late Pleistocene chronology: U.S. Govt. Print. Off., Bulletin 1021-J, p. 303-331, ill., map, pl. ;24 cm.,
- Kennedy, Vance C., 1956, Geochemical studies in the southwestern Wisconsin zinc-lead area: U.S. Govt. Print. Off., Bulletin 1000-E, p.187-223, ill., maps (11 fold. col. in pocket) ;24 cm.,
- King, Ruth Reece; Jussen, V. M.; Pomeroy, J. S.; Skitsky, V. L., 1956, Bibliography of North American geology, 1952 and 1953: U.S. G.P.O., Bulletin 1035, 714 p. ;24 cm.,
- Knechtel, Maxwell McMichael; Patterson, Sam H., 1956, Bentonite deposits in marine Cretaceous formations of the Hardin district, Montana and Wyoming, with a section on laboratory procedures used for testing the bentonites: U. S. Govt. Print. Off., Bulletin 1023, 116 p., illus., maps. ;24 cm.,
- Lovering, T. G., 1956, Radioactive deposits in New Mexico: Bulletin 1009-L, p. 315-390,
- Mapel, W. J., 1956, Uranium in black shale deposits, northern Rocky Mountains and Great Plains: U.S. Govt. Print. Off., Bulletin 1030-H, p.211-235, ill., maps (2 fold. in pocket) ;24 cm.,
- McKeown, F. A.; Klemic, Harry., 1956, Rare-earth-bearing apatite at Mineville, Essex County, New York: U.S. Govt. Print. Off., Bulletin 1046-B, p. 9-23 ;23 cm.,
- Moxham, Robert M.; Eckhart, Richard A., 1956, Marl deposits in the Knik Arm area, Alaska: U.S. Govt. Print. Off., Bulletin 1039-A, p. 1-23, ill., maps (1 col. fold. in pocket) ;24 cm.,
- Olson, J. C.; Wallace, S. R., 1956, Thorium and rare-earth minerals in Powderhorn district, Gunnison County, Colorado: Bulletin 1027-O, p. 693-723,
- Parker, Carol J.; Hathaway, J. C.; Blackmon, P. D., 1956, Some curves from a portable differential thermal analysis unit: U.S. Govt. Print. Off., Bulletin 1021-G, p. 237-251, ill. ;24 cm.,
- Peterson, N. P.; Swanson, R. W., 1956, Geology of the Christmas copper mine, Gila County, Arizona: Bulletin 1027-H, p. 351-373,
- Plafker, George, 1956, Occurrence of diatomaceous earth near Kenai, Alaska: U.S. Govt. Print. Off., Bulletin 1039-B, p. 25-31, ill., maps (1 fold. in pocket) ;24 cm.,
- Rabbitt, M. C.; Vitaliano, D. B.; Vesselowsky, S. T and others, 1956, Geophysical abstracts 166, July-September 1956: Bulletin 1048-C, p. 193-292,
- Rabbitt, M. C.; Vitaliano, D. B.; Vesselowsky, S. T. and others, 1956, Geophysical abstracts 163, October-December 1955: Bulletin 1033-D, p. 211-340,
- Rabbitt, M. C.; Vitaliano, D. B.; Vesselowsky, S. T. and others, 1956, Geophysical abstracts 164, January-March 1956: Bulletin 1048-A, p. 1-92,
- Rabbitt, M. C.; Vitaliano, D. B.; Vesselowsky, S. T. and others, 1956, Geophysical abstracts 165, April-June 1956: Bulletin 1048-B, p. 93-192,
- Rabbitt, M. C.; Vitaliano, D. B.; Vesselowsky, S. T. and others, 1956, Geophysical abstracts 167, October-December 1956: Bulletin 1048-D, p. 293-450,
- Ray, Richard G., 1956, Photogeologic procedures in geologic interpretation and mapping: U. S. Govt. Print. Off., Bulletin 1043-A, p. 1-21, illus. ;24 cm.,
- Robinson, Charles Sherwood, 1956, Geology of Devils Tower National Monument, Wyoming: U.S. Geological Survey Bulletin 1021-I, p. 289-302, ill., map, plates (in pocket) ;23 cm.,
- Rogers, Cleaves Lincoln; Cserna, Zoltan de; Tavera, Eugenio; Ulloa, Salvador, 1956, General geology and phosphate deposits of Concepcion del Oro district, Zacatecas, Mexico: U. S. Govt. Print. Off., Bulletin 1037-A, p. 1-102, illus., maps (2 fold., 1 col. in pocket) ;24 cm.,
- Ross, Clyde Polhemus, 1956, Quicksilver deposits near Weiser, Washington County, Idaho: U.S. Govt. Print. Off., Bulletin 1042-D, p.79-104, [1] leaf of plates :maps (3 fold. col. in pocket) ;24 cm.,
- Sears, Julian Ducker, 1956, Geology of Comb Ridge and vicinity north of San Juan River, San Juan County, Utah: U.S. Geological Survey Bulletin 1021-E, p.167-207, ill., maps (fold. in pocket) ;24 cm.,
- Shapiro, Leonard; Brannock, Walter Wallace, 1956, Rapid analysis of silicate rocks: U.S. Govt. Print. Off., Bulletin 1036-C, p. 19-56, ill. ;24 cm.,
- Stejer, Francis A., 1956, Pyrite deposits at Horseshoe Bay, Latouche Island, Alaska: U.S. Govt. Print. Off., Bulletin 1024-E, p.107-122 :maps (part fold. in pocket) ;24 cm.,
- Thompson, George Albert, 1956, Geology of the Virginia City quadrangle, Nevada: U.S. Govt. Print. Off., Bulletin 1042-C, p.45-77 :map (fold. col. in pocket) ;24 cm.,
- Vickers, R. C., 1956, Geology and monazite content of the Goodrich quartzite, Palmer area, Marquette County, Michigan: U.S. Govt. Print. Off., Bulletin 1030-F, p.171-185, ill., maps (2 fold. col. in pocket) ;24 cm.,
- Vickers, Rollin C., 1956, Airborne and ground reconnaissance of part of the syenite complex near Wausau, Wisconsin: U.S. Govt. Print. Off., Bulletin 1042-B, p. 25-44 :diagrs., maps ;24 cm.,
- Vine, J. D., 1956, Geology of the Stanford-Hobson area, central Montana: Bulletin 1027-J, p. 405-470,
- Wallace, R. E.; Hosterman, J. W., 1956, Reconnaissance geology of western Mineral County, Montana: Bulletin 1027-M, p. 575-612,
- Ward, Frederick Norville; Crowe, Harry E., 1956, Colorimetric determinations of traces of bismuth in rocks: U.S. Govt. Print. Off., Bulletin 1036-I, p. 173-179 ;24 cm.,
- Waring, C. L.; Worthing, H. W., 1956, A spectrographic method for determining the hafnium-zirconium ratio in zircon: U.S. Govt. Print. Off., Bulletin 1036-F, p. 81-90, ill. ;24 cm.,
- Waring, Clarence Almon; Franck, Mona; Sherwood, A. M., 1956, An application of spectrographic microphotometric scanning: U.S. Govt. Print. Off., Bulletin 1036-E, p. 69-80, ill. ;24 cm.,
- Witkind, Irving Jerome, 1956, Uranium deposits at base of the Shinarump conglomerate, Monument Valley, Arizona: U.S. Govt. Print. Off., Bulletin 1030-C, p. 99-130, ill., maps (2 fold. col. in pocket) ;24 cm.,
- Wyant, Donald G.; Sharp, William N.; Sheridan, Douglas M., 1956, Reconnaissance study of uranium deposits in the Red Desert, Sweetwater County, Wyoming: U.S. Govt. Print. Off., Bulletin 1030-I, p. 237-308, ill., maps (8 fold. col. in pocket) ;24 cm.,
