- Ames, F. C., 1956, Sediment data for streams in northwestern California: Open-File Report 56-1, 5 p.,
- Anderson, Charles A.; Kupfer,D. H., 1956, Report on the properties of the Amergosa Molybdenum and Copper Corporation, Pima County, Arizona: U.S. Geological Survey, Open-File Report 45-50, 29 leaves : maps (some folded) ;29 cm.,
- Archbold, Norbert Lee, 1956, Relationships of calcium carbonate to lithology and vanadium-uranium deposits in Salt Wash sandstone of southwestern Colorado: U.S. Geological Survey, Open-File Report 56-2, 27 p. ill., maps ;28 cm.,
- Audsley, G. L., 1956, Reconnaissance of ground-water development in the Fort Stockton area, Pecos County, Texas: Open-File Report 56-3, 105 p., 1 plate,
- Barnes, David F., 1956, Report on seismic survey at Ordnance Test Station, Maynard, Massachusetts: U.S. Geological Survey], Open-File Report 56-4, 8 p. ill., map ;30 cm.,
- Bayley, Richard W., 1956, Preliminary report on the geology of Lake Mary quadrangle, Iron County, Michigan: U.S. Geological Survey, Open-File Report 56-5, 133 p. :maps (6 folded, some col.) ;30 cm.,
- Beamer, N. H., 1956, Salinity investigations in the Delaware River estuary: Open-File Report 56-6, 4 p.,
- Bergendahl, M. H., 1956, Geologic and structure contour maps of the Carlile quadrangle, Crook County, Wyoming: U.S. Geological Survey, Open-File Report 58-14, 4 p. :2 folded maps ;27 cm.,
- Berkstresser, C. F., 1956, Reconnaissance of ground-water conditions in vicinity of Philmont Boy Scout Ranch, Colfax County, New Mexico: Open-File Report 56-7, 14 p.,
- Bickel, Robert Samuel; Patton, William Wallace, Jr., 1956, Preliminary geologic map of the Nulato and Kateel Rivers area, Alaska: U.S. Geological Survey], Open-File Report 56-8, 2 maps ;190 x 109 and 63 x 114 cm.,
- Bodhaine, G. L., 1956, Correlative discharge estimates for Columbia River at Wells dam site near Pateros, Washington, for water years 1928-53: Open-File Report 56-10, 2 p.,
- Bodhaine, G. L., 1956, Correlative discharge estimates for Columbia River at Rocky Reach dam site near Entiat, Washington, for water years 1928-53: Open-File Report 56-9, 2 p.,
- Bradley, Edward; Cushman, R. V., 1956, Memorandum report on geologic and ground-water conditions in the Hubbard Brook watershed, New Hampshire: Open-File Report 56-11, 15 p., 1 plate,
- Breeding, S. D.; Holland, P. H., 1956, Delivery of water, Whitney Reservoir to Richmond, Texas, via Brazos River channel, 1954: Open-File Report 56-12, 4 p.,
- Brennan, Robert, 1956, Chemical quality of the water of the coastal basins of northern California: Open-File Report 56-13, 48 p.,
- Brennan, Robert, 1956, Preliminary chemical quality study in the Manhattan Beach area, California: Open-File Report 56-14, 33 p.,
- Brosge, W. P.; Reiser, H. N., 1956, Geochemical reconnaissance maps of granite rocks, Coleen and Table Mountain quadrangles, Alaska: Open-File Report 68-24, 3 maps and 1 data sheet :photocopy ;89 x 52 cm., on sheets 107 x 73 cm. and sheet 107 x 46 cm.,
- Brown, C. Ervin; Whitlow, Jesse W., 1956, Records of drill holes from drilling in Dubuque County, Iowa, by the U.S. Geological Survey, 1955: U.S. Geological Survey, Open-File Report 56-15, 31 p. ill., map ;28 cm.,
- Brown, R. H.; Harshbarger, J. W.; Thomas, H. E., 1956, Analysis of basic data concerning ground water in the Yuma area, Arizona: Open-File Report 56-16, 117 p., 2 plates,
- Brown, S. G.; Newcomb, R. C., 1956, The ground-water resources of Cow Valley near Ironside, Malheur County, Oregon: Open-File Report 56-17, 46 p., 9 plates,
- Brown, S. G.; Newcomb, Reuben Clair, 1956, Ground-water resources of the sand-dune area north of Coos Bay, Oregon: U.S. Dept. of the Interior, Geological Survey, Open-File Report 56-18, 37 p. (some folded) :ill., maps ;27 cm.,
- Burnham, Willis L.; Dutcher, L. C., 1956, Map of Redlands-Beaumont area, California, showing well locations and water-level contours for March 1955: Open-File Report 56-19, 1 map.,
- Byers, F. M., 1956, Geologic map of the Alvord Mountain quadrangle, California: Open-File Report 56-20, 1 map,
- Campbell, Arthur Byron, 1956, Reconnaissance geologic map of the St. Regis-Superior area, Mineral County, Montana: Open-File Report 56-21, 1 map,
- Carlson, John Edward, 1956, Drilling data in the Montfort, Rewey, Mifflin, Belmont, and Calamine quadrangles, Wisconsin: U.S. Geological Survey, Open-File Report 56-23, 70 p. :6 maps (5 folded, col.) ;27 cm.,
- Cater, Fred W.; Crowder, D. F., 1956, Geologic map of the Holden quadrangle, Washington: Open-File Report 56-24, 1 map,
- Chase, George Holden, 1956, Five preliminary maps of Kit Carson County, Colorado, showing the depth to the water table in the principal aquifer, altitude of the surface of the Pierre Shale, and depth to the Pierre shale: Open-File Report 56-25, 5 maps.,
- Colbert, Jesse Lane, 1956, Waterpower resources of Cascade Creek, Scenery Creek, and Delta Creek near Petersburg, Alaska: U.S. Geological Survey], Open-File Report 56-26, 58 p. folded maps, ill. ;27cm.,
- Colby, B. R., 1956, Relationship of sediment discharge to streamflow: U.S. Dept. of the Interior, Geological Survey, Water Resources Division, Open-File Report 56-27, 170 p. ill., maps ;27 cm.,
- Colby, B. R., 1956, Relationship of unmeasured sediment discharge (difference between total and measured sediment discharge) to mean velocity: Open-File Report 56-28, 17 p.,
- Conover, C. S., 1956, The ground-water situation in Albuquerque: Open-File Report 56-29, 6 p.,
- Conover, C. S. and others, 1956, Results of spot-discharge measurements and chemical analyses of water along the Pecos River, tributaries, and diversions between Acme and Artesia, New Mexico, January and February 1956: Open-File Report 56-30, 8 p.,
- Crosthwaite, E. G., 1956, Ground-water use in Idaho: Open-File Report 56-31, 7 p.,
- Crosthwaite, E. G., 1956, Well records and ground-water levels in western Jerome County, Idaho: Open-File Report 56-32, 151 p., 1 plate,
- Cushing, E. M., 1956, The water situation in Tennessee: Open-File Report 56-33, 6 p.,
- Daniels, W. S.; Hale, M. D., 1956, Floods of October 1954 in the Chicago area, Illinois and Indiana: Open-File Report 56-34, 58 p., 2 maps,
- Davis, G. H., 1956, Geologic and drainage features of lands involved in action to quiet title to properties in Kings Canyon National Park, U. S. vs. Blanchard, et al: Open-File Report 56-35, 13 p., 2 plates,
- Davis, G. H.; Green, J. H.; Olmstead, F. H.; Brown, D. W., 1956, Ground-water conditions and storage capacity in the San Joaquin Valley, California; plates 2, 3, 4, 5, 6, 7, 8, 15, 30, 31, and 37: California Division of Water Resources, Open-File Report 56-36, 2 v. :ill., maps ;27 cm.,
- Dings, McClelland G., 1956, Structure contour map of the Pend Oreille and Grandview mines area, Metaline mining district, Pend Oreille County, Washington: Open-File Report 56-37, 1 map,
- Dings, McClelland G.; Yates, Robert Giertz, 1956, Geologic map and sections of the Metaline mining district, Pend Oreille County, Washington: Open-File Report 56-38, 1 map,
- Dobrovolny, Ernest; Gard, L. M., Jr., 1956, Report on the geology of the relocation alignment between Marshall, Colorado, and the Rocky Flats Atomic Energy Commission plant, State Highway No. 93: Open-File Report 56-39, 30 p., 1 map, 54 plates,
- Durfor, C. N., 1956, Investigation of water-quality hydrology in the Ft. Belvoir, Virginia area, 1954-1955: Open-File Report 56-40, 115 p.,
- Dutcher, L. C., 1956, Memorandum summarizing preliminary estimates of ground-water outflow from Bunker Hill Basin at Colton Narrows, San Bernardino County, California: U.S. Dept. of the Interior, Geological Survey, Water Resources Division, Ground-Water Branch, Open-File Report 56-41, 14 p. ill., maps ;27 cm.,
- Eaton, W. R., 1956, Estimated use of water in Tennessee, 1949 (breakdown of data pertaining to Tennessee published in Circular 115): Open-File Report 56-42, 6 p.,
- Eaton, W. R., 1956, Location of gaging stations in Tennessee district, Surface Water Branch, and delineation of areas of certain 3-day minimum discharges occurring once in 2 years and once in 10 years, on the average: Open-File Report 56-43, 2 maps,
- Erskine, H. M., 1956, Losses due to ice storage in Heart River between Heart Butte Dam and Mandan, North Dakota: Open-File Report 56-44, 20 p., 1 map,
- Eschman, Donald Frazier; Hartshorn, Joseph H., 1956, Geologic map of proposed relocation of Route 2 between Ward Hill Road, Phillipston, and Templeton town line, Massachusetts: U.S. Geological Survey], Open-File Report 56-45, 3 p. :folded col. map ;27 cm.,
- Foxworthy, B. L.; Washburn, R. L., 1956, Reconnaissance investigation of ground water in the Wellpinit area, Stevens County, Washington: United States Department of the Interior, Geological Survey, Water Resources Division, Ground Water Branch, Open-File Report 56-46, 14 p. ill., maps. ;27 cm.,
- Geological Survey (U. S.), 1956, Estimated use of water in Tennessee: Open-File Report 56-120, 1 p.,
- Geological Survey (U. S.), 1956, Kanawha River, West Virginia, computed daily discharge at selected points, September 20 to October 10, 1949: Open-File Report 56-121, 5 p.,
- Geological Survey (U. S.), 1956, North Mississippi floods of March 1955: Open-File Report 56-124, 42 p.,
- Geological Survey (U. S.), 1956, Stream discharges for Alabama River basin in Alabama: Open-File Report 56-125, 189 p.,
- Geological Survey (U.S.), 1956, Map showing chemical quality of ground water in Lea County, New Mexico: Open-File Report 56-122, 1 map.,
- Geological Survey (U.S.), 1956, Map showing chemical quality of ground water, Otero County, New Mexico: Open-File Report 56-123, 1 map.,
- Geological Survey (U.S.), 1956, Geochemical Study of Soil Contamination, Coeur d‘ Alene District, Shoshone County, Idaho: Geological Survey (U.S.) Open-File Report 56-22, 1 map :photocopy ;59 x 69 cm., on sheet 78 x 104 cm. + 1 data sheet (58 x 89 cm.),
- Gibson, Russell, 1956, Memorandum reports on the geologic spot examinations of mines and prospects in Iran, February 1954, through June, 1955: U.S. Geological Survey, Open-File Report 56-47, 1 v. (various paging) :maps (some folded) ;30 cm.,
- Hackman, Robert J., 1956, The multi-slope model: a constructed stereoscopic model showing angles of slope from 2 to 90 degrees at different locations and sloping in different directions in the model: U.S. Geological Survey, Open-File Report 56-48, 3 p. ill. ;27 cm.,
- Harris, A. H.; Jibson, W. N., 1956, Bear River hydrometric data, tri-state investigations, 1954: Open-File Report 56-49, 89 p.,
- Harris, A. H.; Jibson, W. N., 1956, Bear River hydrometric data, tri-state investigations, 1955: Open-File Report 56-50, 106 p., 1 map,
- Hartshorn, Joseph H.; Hanshaw, P. M., 1956, Surficial geologic map along Route 110 relocation from Lowell to Littleton, Massachusetts: Open-File Report 56-51, 1 map.,
- Hecht, R. J., 1956, Reconnaissance map of southeastern Massachusetts showing the distribution of deposits of Quaternary age: Open-File Report 56-52, 1 map.,
- Herrick, E. H., 1956, Memorandum on the possibilities of irrigation in the Capulin area, Colfax and Union Counties, New Mexico: Open-File Report 56-53, 11 p.,
- Hogenson, Glenmore Melvin, 1956, Geology and ground-water resources of the Umatilla River basin area, Oregon: U.S. Geological Survey], Open-File Report 56-54, 215 p. ill. (some folded), maps ;27 cm.,
- Holland, P. H.; Irelan, Burdge, 1956, Guadalupe and Blanco River seepage investigations: Open-File Report 56-55, 33 p., 24 maps and charts,
- Holland, Pat H.; Lee, Frank C., 1956, Low-flow investigation of the Pedernales River, Texas: U.S. Geological Survey, Open-File Report 56-56, 20 p. ill., col. map ;27 cm.,
- Huber, N. King, 1956, The environmental control of sedimentary iron minerals and its relation to the origin of the Ironwood iron formation: U.S. Geological Survey, Open-File Report 56-57, 95 p. ill., maps ;30 cm.,
- Irelan, Burdge, 1956, Chemical quality standards for irrigation waters: Open-File Report 56-58, 8 p.,
- James, Harold Lloyd, 1956, Johnny Gulch talc deposit, Madison County, Montana: s.n., Open-File Report 56-59, 8 p. ill., 3 maps (1 folded) ;27 cm.,
- Jenkins, E. D., 1956, Results of pumping tests in the Widefield area, Fountain Valley, Colorado: Open-File Report 56-60, 15 sheets,
- Johnson, F. A., 1956, Waterpower possibilities of Crater Lake, Long Lake, and Speel River near Juneau, Alaska: U.S. Dept. of the Interior, Geological Survey, Open-File Report 56-61, 69 p. ill., maps (2 col.) , photographs ;27 cm.,
- Johnson, F. A.; Soward, Kenneth S., 1956, Preliminary report on waterpower possibilities of Bradley Lake, Alaska, with a chapter on tentative geologic conclusions on Bradley Lake power site: U.S. Geological Survey, Open-File Report 56-62, 85 p. ill., maps ;29 cm.,
- Johnston, P. M., 1956, Geology of the Great Falls Park area, Fairfax County, Virginia: Open-File Report 56-63, 5 p.,
- Jones, J. R., 1956, Map of east-central South Dakota showing area, underlain by more than 25 feet of stratified sand and gravel: Open-File Report 56-64, 1 map.,
- Jones, William Rich, 1956, The central mining district, Grant County, New Mexico: U.S. Geological Survey, Open-File Report 56-65, 1 v. :4 folded maps ;30 cm.,
- Kachadoorian, Reuben, 1956, Engineering geology of the Katalla area, Alaska: U.S. Geological Survey, Open-File Report 56-66, 21 p. :folded ill., 4 folded maps ;28 cm.,
- Kachadoorian, Reuben, 1956, Engineering geology of the Nenana-Rex area, Alaska: U.S. Geological Survey], Open-File Report 56-67, 20 p. ill., maps (1 folded) ;27 cm.,
- Kachadoorian, Reuben, 1956, Engineering geology of the Warford Mesa subdivision, Orinda, California: U.S. Geological Survey], Open-File Report 56-68, 14 p. :map ;29 cm.,
- Kaiser, Edward Peck, 1956, Preliminary report on the geology and deposits of monazite, thorite and niobium-bearing rutile of the Mineral Hill district, Lemhi County, Idaho: U.S. Geological Survey, Open-File Report 56-69, 43 p. ill. (1 col.), maps (some folded, 1 col.) ;30 cm.,
- Keech, C. F., 1956, Water levels in observation wells in Nebraska during 1955: Open-File Report 56-70, 106 p.,
- Keller, Abraham Samuel; Cass, John T., 1956, Petroliferous sand of the Chignik formation at Chignik Lagoon, Alaska: U.S. Dept. of the Interior, Geological Survey, Open-File Report 56-71, 5 p. & 2 fold. maps.27 cm.,
- Kunkel, Fred, 1956, A brief hydrologic and geologic reconnaissance of Pinto Basin, Joshua Tree National Monument, Riverside County, California: U.S. Geological Survey, Ground Water Branch, Open-File Report 56-72, 35 p. (some folded) :ill., map ;27 cm.,
- Kunkel, Fred, 1956, Data on water wells in Cuddeback, Superior, and Harper Valleys, San Bernardino County, California: United States Department of the Interior Geological Survey, Ground Water Branch, Open-File Report 56-73, 73 p. :map ;27 cm.,
- Kupfer, Donald H.; Bassett, Allen M., 1956, Preliminary geologic map of part of southeastern Mojave Desert, California: Open-File Report 56-74, 1 map,
- Laine, L. L., 1956, Surface-water resources of Polecat Creek basin, Oklahoma: Open-File Report 56-75, 20 p.,
- Lohr, E. W., 1956, Chemical character of the public water supplies of the larger cities of Alaska, Hawaii, and Puerto Rico, 1954: Open-File Report 56-76, 39 p.,
- Mapel, W. J.; Robinson, Charles Sherwood, 1956, Geologic and structure contour maps of the northern and western flanks of the Black Hills, Wyoming, Montana, and South Dakota: U.S. Geological Survey, Open-File Report 56-77, 9 p. :maps ;28 cm.,
- Miller, John Charles, 1956, Geology of waterpower sites on Crater Lake, Long Lake, and Speel River near Juneau, Alaska: U.S. Geological Survey, Open-File Report 56-78, 46 p. :maps (some folded, col.) ;29 cm.,
- Miller, Robert D., 1956, Surficial geology of the Council Bluffs, Iowa, area: Open-File Report 56-79, 1 map,
- Monroe, Watson Hiner, 1956, Spectrographic analyses of laterite soil from the Mayaguez area, Puerto Rico: U.S. Geological Survey, Open-File Report 56-80, 3 p. :2 col. maps ;27 cm.,
- Moore, A. M., 1956, Measuring streamflow under ice conditions: Open-File Report 56-81, 14 p.,
- Moore, Samuel L., 1956, Zinc and copper mineralization of the Vazante area, Minas Gerais, Brazil: U.S. Geological Survey, Open-File Report 56-82, 23 p. :maps (some folded) ;27 cm.,
- Morris, Donald Arthur, 1956, Reconnaissance of the geology and ground-water resources of the Cheyenne River drainage basin in northern Converse County, Wyoming: United States Geological Survey, Water Resources Division, Open-File Report 56-83, 14 p. ill., maps ;28 cm.,
- Morris, H. T.; Disbrow, A. E.; Lovering, Thomas Seward, 1956, U.S. Geological Survey exploration program in the Trixie area, East Tintic mining district, Utah County, Utah: U.S. Geological Survey, Open-File Report 56-84, 83 p. :maps (1 folded, col.) ;27 cm.,
- Muir, K. S.; Merritt, P. M., 1956, Water levels in observation wells in Santa Barbara County, California, in 1955: Open-File Report 56-85, 69 p., 9 plates,
- Murphy, John Francis, 1956, Preliminary report on titanium-bearing sandstone in the San Juan Basin and adjacent areas in Arizona, Colorado, and New Mexico: U.S. Geological Survey], Open-File Report 56-86, 8 p. :folded map ;29 cm.,
- Nace, Raymond L., 1956, Ground water in the water economy of Idaho: Open-File Report 56-87, 23 p.,
- Newcomb, R. C., 1956, List of reports pertaining to the occurrence of ground water in Oregon: Open-File Report 56-88, 7 p.,
- Newcomb, R. C.; Hogenson, G. M., 1956, Availability of ground water in the Schoolie Flat area, Wasco County, Oregon: Open-File Report 56-89, 13 p., 1 plate,
- Newell, T. R., 1956, The December 1955 flood in west central Idaho, with supplement by W. I. Travis: Open-File Report 56-90, 13 p.,
- Nichols, Donald R., 1956, Permafrost and ground-water conditions in the Glennallen area, Alaska: s.n.], Open-File Report 56-91, 24 p, 2 leaves of plates :ill. ;27 cm.,
- Otton, E. G., 1956, Memorandum describing the effect of a proposed increased withdrawal of ground water from aquifers at Sparrows Point, Maryland: Open-File Report 56-92, 17 p.,
- Petitt, B. M., Jr., 1956, Memorandum on irrigation by ground water from the Edwards and associated limestones in the San Antonio-Hondo-Uvalde area, Texas: Open-File Report 56-93, 6 p., 3 plates,
- Pipiringos, G. N., 1956, Uranium-bearing coal in the central part of the Great Divide Basin, Sweetwater County, Wyoming: U.S. Geological Survey, Open-File Report 56-94, 138 p. ill., maps ;29 cm.,
- Plafker, George, 1956, Geologic investigations of proposed Sheep Creek, Carlson Creek, and Turner Lake power sites, Alaska: s.n., Open-File Report 56-95, 36 p. :maps ;27 cm.,
- Plafker, George; Miller, Don John, 1956, Reconnaissance geology of the Malaspina district, Alaska: U.S. Geological Survey, Open-File Report 56-96, 39 p. :folded map ;27 cm.,
- Pollock, S. J., 1956, Bedrock geology of the Tiverton quadrangle, Rhode Island-Massachusetts: Open-File Report 56-97, 41 p., 1 map,
- Pommer, Alfred Michael, 1956, Oxidation potential and state of some vanadium ores and the relation of woody material to their deposition: U.S. Geological Survey, Open-File Report 56-98, 84 p. ill., maps ;27 cm.,
- Reeder, H. O.; Mower, R. W.; Bjorklund, L. J.; Hood, J. W.; Benge, U. N.; Hollander, J. T.; Howard, J. W., 1956, Water levels and artesian pressures in observation wells in New Mexico in 1954: Geological Survey (U.S.) Open-File Report 56-99, 502 p.,
- Riley, Francis S., 1956, Data on water wells in Lucerne, Johnson, Fry, and Means Valleys, San Bernardino County, California: United States Department of the Interior, Geological Survey, Ground Water Branch, Open-File Report 56-100, 150 p. :map ;27 cm.,
- Robertson, Eugene C., 1956, Magnetite deposits near Klukwan and Haines, southeastern Alaska: U.S. Geological Survey], Open-File Report 56-101, 37 p. ill., maps (some folded) ;27 cm.,
- Robertson, J. F., 1956, Seven maps of the Bully Hill mine, Shasta County, California: s.n., Open-File Report 56-102, [1 v.] :2 folded maps (1 col.) ;92 x 70 cm. - 43 x 34 cm.,
- Robinson, Charles Sherwood, 1956, Geology and ore deposits of the Whitepine area, Tomichi mining district, Gunnison County, Colorado: U.S. Geological Survey, Open-File Report 56-103, 255 p. ill., maps ;30 cm.,
- Rorabaugh, M. I., 1956, Summary of ground-water data-collection stations in Florida: Open-File Report 56-104, NA,
- Rynearson, Garn Arthur; Hutchinson, R. M., 1956, Blue Ledge mine, Siskiyou County, California: U.S. Geological Survey, Open-File Report 56-105, 1 v. :ill., maps ;30 cm.,
- Schoff, S. L.; Sayan, J. L., 1956, Preliminary appraisal of the ground-water resources in the vicinity of Lima, Peru: Open-File Report 56-106, 7 p.,
- Siple, G. E., 1956, Geology and ground water in parts of Aiken, Barnwell, and Allendale Counties, South Carolina: Open-File Report 56-107, 131 p., 10 plates,
- Siple, George E., 1956, Memorandum on the geology and ground-water resources of the Parris Island area, South Carolina: Open-File Report 57-100, 53 p., 14 figs.,
- Sisco, H. G., 1956, Water levels in observation wells in the Aberdeen-Springfield area, Bingham and Power Counties, Idaho, in 1955: Open-File Report 56-108, 32 p., 1 plate,
- Smith, George I., 1956, Geology and petrology of the Lava Mountains, San Bernardino County, California: U.S. Geological Survey], Open-File Report 56-109, 230 p. ill. (some folded), maps (some folded, some col.) ;28 cm.,
- Spetzman, Lloyd Anthony, 1956, Annotated list of plants of Arctic Slope of Alaska: U.S. Geological Survey, Open-File Report 56-110, 1 leaf :map ;27 cm.,
- Stallman, Robert William, 1956, Preliminary findings on ground-water conditions relative to Area B flood control plans, Miami, Florida: U.S. Dept. of the Interior, Geological Survey, Open-File Report 56-111, 29 p. ill., maps ;27 cm.,
- Stewart, Samuel Woods, 1956, Gravity survey of Ogden Valley, Weber County, Utah: U.S. Geological Survey], Open-File Report 56-112, 28 p. ill., maps ;30 cm.,
- Swartz, Joel Howard; MacCarthy, G. R.; Shuler, R. M., 1956, A magnetic survey of the southern part of Georgia: U.S. Geological Survey, Open-File Report 56-113, 123 p. :maps ;30 cm.,
- Thomas, H. E., 1956, Factors influencing the establishment of a national water policy: Open-File Report 56-114, 9 p.,
- Thomas, H. E., 1956, Ground water: Open-File Report 56-115, 7 p.,
- Thomas, H. E., 1956, Hydrology vs. water allocation in the eastern United States: Open-File Report 56-116, 26 p.,
- Thomas, H. E., 1956, Some hydrologic principles to be considered in ground-water legislation: Open-File Report 56-117, 9 p.,
- Thomasson, H. G., Jr.; Olmsted, F. H.; LeRoux, E. F., 1956, Geology and ground-water resources of the Putah and Suisun-Fairfield areas, Solano County, California, with special references to the usable ground-water storage capacity: [s.n.], Open-File Report 56-137, 719 p.; 5 v. :ill., maps (some folded) ;27 cm.,
- Trainer, F. W., 1956, Results of specific-gravity test of a well at Alaska Agricultural Experiment Station, Matanuska, Alaska, September 1955: Open-File Report 56-118, 3 p.,
- Troxell, H. C., 1956, Southern California water resources summary for 1955: Open-File Report 56-119, 42 p.,
- Vedder, J. G.; Schoelhamer, J. E., 1956, Preliminary report on the geology of San Nicolas Island, California: U.S. Geological Survey], Open-File Report 56-126, 15 p. ;28 cm.,
- Vickers, Rollin C., 1956, Origin and occurrence of uranium in northern Michigan: U.S. Geological Survey], Open-File Report 56-127, 76 p. :folded ill., maps (some folded) ;27 cm.,
- Ward, R. F., 1956, The geology of the Wissahickon formation in Delaware: Open-File Report 56-128, 57 p., 2 plates,
- Wegner, Duane E., 1956, Preliminary investigation of ground water in the Grayland watershed, Grays Harbor and Pacific Counties, Washington: U.S. Dept. of the Interior, Geological Survey, Water Resources Division, Ground Water Branch, Open-File Report 56-129, 32 p. ill., map ;28 cm.,
- Weigle, James Montgomery; Washburn, Robert L., 1956, Records of wells and springs, water levels, and quality of ground water in Lewis County, Washington: United States Department of the Interior, Geological Survey, Water Resources Division, Ground Water Branch, Open-File Report 56-130, 352 p. ill., maps ;27 cm.,
- West, S. W., 1956, Ground water in part of the Fort Hall Indian Reservation, Bannock and Bingham Counties, Idaho: Open-File Report 56-131, 41 p., 3 plates,
- Wilson, K. V., 1956, South Mississippi floods of April 1955: Open-File Report 56-132, 36 p., 8 plates,
- Winograd, I. J., 1956, Occurrence and quality of ground water in the Fort Union area, Mora County, New Mexico: Open-File Report 56-133, 14 p.,
- Winterer, Edward L., 1956, Geology of southeastern Ventura Basin, Los Angeles County, California: U.S. Geological Survey, Open-File Report 56-134, 141 p. ill., maps ;28 cm.,
- Witkind, Irving Jerome, 1956, Geology and ore deposits of the Monument Valley area, Apache and Navajo Counties, Arizona: U.S. Geological Survey], Open-File Report 57-124, 222 p. ill., maps ;27 cm.,
- Wood, L. A., 1956, Availability of ground water in the Gulf Coast region of Texas: Open-File Report 56-135, 65 p., 26 plates,
- Yates, Robert Giertz; Robertson, J. F., 1956, Geologic map of the Leadpoint quadrangle, Washington: U.S. Geological Survey, Open-File Report 56-136, 2 p. ill., folded col. chart, folded col. map ;27 cm.,
