- Adams, John Wagstaff, 1949, Geologic map and sections, Burt mica mine, Custer County, South Dakota: Open-File Report 49-18, 1 map.,
- Anderson, Charles Alfred; Cox, M. W., 1949, Geology of the Hall molybdenum property, Nye County, Nevada: U.S. Geological Survey, Open-File Report 49-5, 13 p. ill., 4 maps ;27 cm.,
- Ayer, G. R., 1949, A progress report on an investigation of the influence of reforestation on stream flow in State forests in central New York: Open-File Report 49-53, 185 p.,
- Bailey, E. H.; Everhart, D. L., 1949, The New Almaden quicksilver mine, Santa Clara County, California: Open-File Report 49-19, 9 p., 22 illus.,
- Balsley, J. R., 1949, Aeromagnetic maps of part of the Gulf of Mexico: Open-File Report 49-12, 2 maps,
- Barnes, F. F., 1949, Coal investigations on the southern margin of the Homer district, Kenai Coal Field, Alaska, in 1947-48: Open-File Report 49-20, 20 p., 4 plates,
- Bateman, Andrew F., Jr., 1949, Unevaluated report on the geology of powersites in Nooksack River Basin above Deming, Washington: U.S. Geological Survey, Open-File Report 79-416, xiii, 437 p., 73 sheets :ill., maps ;29 cm.; Report written about 1949,
- Bath, G. D.; Cook, K. L., 1949, A geophysical survey of a part of the southwestern Johnson Creek fault area, Ochoco quicksilver district, Oregon: Open-File Report 49-21, 10 p.,
- Berry, D. W., 1949, Ground-water data collected in Kansas on the Almena, Bostwick, Cedar Bluff, Glen Elder, Kanopolis, Webster, and Wilson Units in the Missouri River Basin: Open-File Report 49-54, 188 p.,
- Bjorklund, L. J.; Tavelli, J. A.; Swenson, H. A., 1949, Progress report on the ground-water resources of the Lower South Platte River Valley between Hardin, Colorado, and Paxton, Nebraska, with a section on the chemical quality of the ground water: Open-File Report 49-55, 150 p., 7 plates,
- Bluhm, F. I.; Wolcott, Henry Newton; Hem, John David, 1949, Ground-water resources of Deer Valley, Maricopa County, Arizona: U.S. Dept. of the Interior, U.S. Geological Survey, Open-File Report 49-131, 33, [6] leaves :ill., fold. maps ;28 cm.,
- Bradley, Wilmot H.; Tracey, Joshua I., Jr., 1949, Nantucket Harbor and the proposed cut at Chatham Bend: [s.n.], Open-File Report 49-22, 16 p. ill. ;28 cm.,
- Brashears, M. L., Jr., 1949, Ground-water conditions at Levittown, Long Island, New York: Open-File Report 49-56, 3 p.,
- Brashears, M. L., Jr., 1949, Hydrologic data for pumping test at Levittown, New York, September 16-17, 1949: Open-File Report 49-57, 2 p., 2 maps,
- Brown, S. C., 1949, Water-supply investigation at Lukachukai, Navajo Indian Reservation, Arizona: Open-File Report 49-58, 8 p.,
- Brown, S. C.; Halpenny, L. C.; Whitcomb, H. A., 1949, Water-supply investigation at Navajo Mountain, Navajo Indian Reservation, San Juan County, Utah: Open-File Report 49-59, 14 p.,
- Buddington, A. F.; Leonard, B. F., 1949, Memorandum on the geology of the Crown Point, New York, group of magnetite deposits: U.S. Geological Survey, Open-File Report 49-24, 22 p. :map ;27 cm.,
- Byrne, Frank E.; Mudge, Melville R.; Beck, Henry V.; Burton, Robert H., 1949, Preliminary report and map on the geologic construction material resources in Riley County, Kansas: [U.S. Geological Survey], Open-File Report 49-128, xiii, 98 [2] leaves :ill., 2 maps ;30 cm.,
- Campbell, Charles Duncan, 1949, Geology of the Bechtol lead mine, Northport district, Stevens County, Washington: U.S. Geological Survey, Open-File Report 49-25, 4 p. ill., 2 folded maps ;27 cm.,
- Cederstrom, D. J., 1949, Basic data on the results of test drilling in the Fairbanks area, Alaska, in the fall of 1948: Open-File Report 49-60, 7 p.,
- Chute, Newton Earl, 1949, Preliminary study of beach erosion of the shoreline between Nantasket Beach and Duxbury Beach, Massachusetts: U.S. Geological Survey], Open-File Report 49-26, 16 p. : 3 folded maps ;27 cm.,
- Clabaugh, Stephen Edmund, 1949, Corundum deposits of Montana: U.S. Geological Survey, Open-File Report 49-14, 168 p. :ill., maps ;27 cm.,
- Conover, C. S., 1949, Water levels in observation wells in New Mexico in January and February 1949, with a discussion of changes in level from 1948-49: Open-File Report 49-61, 10 maps,
- Cornwall, H. R.; Runner, J. J.; Stromquist, A. A.; Swanson, R. W.; White, W. S., 1949, Detailed geologic map of the recently active copper mines; Houghton and Keweenaw Counties, Michigan: Open-File Report 50-4, 24 maps,
- Cromack, G. H., 1949, Water wells in Linn district, Hidalgo County, Texas: Open-File Report 49-62, 7 p.,
- Currier, L. W.; Hansen, W. R.; Jahns, R. H.; Willard, M. E., 1949, Geologic reconnaissance along proposed relocation of Route 2 in Maynard, Westford, and Ayer quadrangles, Massachusetts: Open-File Report 49-16, 15 p.,
- Cushing, E. M., 1949, Letter to Maj. J. H. Allen, President, Memphis Light, Gas, and Water Division, transmitting copies of the electric logs and copies of the brief condensed logs for 3 test holes in western Tennessee: Open-File Report 49-63, NA,
- Daniels, Eugene, 1949, Memorandum on pumping tests at Jefferson Junction, Wisconsin: Open-File Report 49-64, 3 p.,
- Deiss, C. F., 1949, Analyses of Madison limestone, Wyoming, table and index map: Open-File Report 49-27, NA,
- Dennis, P. E., 1949, Water-level measurements in an observation well found to be useful in determining soil-moisture conditions: Open-File Report 49-65, 1 p.,
- Duncan, Donald Cave; Myers, W. H.; Byers, F. M., 1949, Geologic maps of the antimony deposits in Antimony Canyon (Coyote Creek), Garfield County, Utah: Open-File Report 49-10, 1 map.,
- Ferris, J. G., 1949, Memorandum on ground-water conditions at Terre Haute, Indiana, October 1944: Open-File Report 49-66, NA,
- Ferris, J. G.; Klaer, F. H., Jr., 1949, The yield of the well field of the Vigo Ordnance Plant, near Terre Haute, Indiana: Open-File Report 49-67, NA,
- Fiedler, A. G., 1949, The logging and sampling of hydraulic rotary-drilled test holes: Open-File Report 49-68, 4 p.,
- Fishel, V. C., 1949, Ground water in southwestern Kansas: Open-File Report 49-69, 13 p.,
- Garrett, A. A., 1949, Memorandum on present status of the saline front, to supplement progress report on water supply for the Point Mugu Naval Base, Ventura County, California, by J. F. Poland: Open-File Report 49-70, 4 p.,
- Garrett, A. A., 1949, Status of salt-water contamination in the coastal part of Orange County, California, as of 1948-49: Open-File Report 49-71, 36 p., 7 plates,
- Garrett, A. A.; Thomasson, H. G., Jr., 1949, Ground-water outflow from the Chino Basin, California, and the controlling geologic and hydrologic conditions: United States Geological Survey], Open-File Report 49-72, 143 p.; 19 folded plates., maps ;27 cm.,
- George, W. O., 1949, Ground water in the Linn district, north-central Hidalgo County, Texas: Open-File Report 49-73, 8 p.,
- Gilluly, James, 1949, The Ajo mining district, Arizona: U.S. Geological Survey, Open-File Report 49-28, 3 p.; 1 map ( folded) ;27 cm.,
- Good, Stanley E., 1949, Preliminary report on the geology of some mineral deposits in the Twin Crags area, Kootenai County, Idaho: U.S. Geological Survey, Open-File Report 49-4, 11 p. ill., folded map ;27 cm.,
- Graham, J. B.; Stephenson, R. C., 1949, Ground-water supply at the Letterkenny Ordnance Depot, Chambersburg, Pennsylvania: Open-File Report 49-74, 14 p., 1 map,
- Griggs, R. L., 1949, Memorandum on the availability of ground water at the Flemington, West Virginia, High School: Open-File Report 49-75, 5 p.,
- Hains, C. F.; Van Sickle, D. M.; Ryals, W. G., 1949, Range water resources of a part of the Elko Grazing District, Elko County, Nevada: Open-File Report 49-76, 84 p., 2 plates,
- Halpenny, L. C., 1949, Memorandum on results of well drilling at Chinle, Navajo Indian Reservation, Apache County, Arizona: Open-File Report 49-81, 3 p.,
- Halpenny, L. C.; Brown, S. C.; Hem, J. D., 1949, Water-supply investigation of Fort Defiance area, Navajo Indian Reservation, Apache County, Arizona, with a section on quality of water: Open-File Report 49-15, 12 p., 2 plates,
- Halpenny, L. C.; Whitcomb, H. A., 1949, Water-supply investigation at Baca School, near Prewitt, McKinley County, New Mexico: Open-File Report 49-77, 16 p., 1 plate,
- Halpenny, L. C.; Whitcomb, H. A., 1949, Memorandum on status of water-supply investigation of Sawmill area, Navajo Indian Reservation, Apache County, Arizona: Open-File Report 49-78, 4 p.,
- Halpenny, L. C.; Whitcomb, H. A., 1949, Water-supply investigation at Thoreau, McKinley County, New Mexico: Open-File Report 49-79, 15 p., 1 plate,
- Halpenny, L. C.; Whitcomb, H. A., 1949, Water-supply investigation at Mexican Springs, Navajo Indian Reservation, McKinley County, New Mexico: Open-File Report 49-80, 21 p., 1 plate,
- Hem, J. D.; Hughes, L. S., 1949, Quality of water in Tucumcari irrigation project, New Mexico: Open-File Report 49-82, 14 p.,
- Hembree, C. H.; Swenson, H. A.; Boyer, M. C.; Melin, K. R., 1949, Progress report on investigation of fluvial sediments and water quality in Bighorn Drainage Basin, Wyoming and Montana: Open-File Report 49-83, 163 p., 24 plates,
- Henderson, John R., 1949, Four preliminary aeromagnetic maps covering Clay, Knox, Sullivan, and Vigo Counties, Indiana: Open-File Report 49-29, 4 maps.,
- Henderson, John R., 1949, Preliminary aeromagnetic map covering Fountain County, Indiana: Open-File Report 49-30, 1 map.,
- Henderson, John R., 1949, Preliminary aeromagnetic map covering Greene County, Indiana: Open-File Report 49-31, 1 map.,
- Hendrickson, G. E., 1949, Memorandum on trip to site of proposed dam north of Clovis, New Mexico: Open-File Report 49-84, 2 p.,
- Hinrichs, E. Neal, 1949, The pegmatites of the Errington-Thiel mine, Elko County, Nevada: U.S. Geological Survey, Open-File Report 49-32, 24 p.; ill., 2 maps ;27 cm.,
- Holtz, Preston Enslow, 1949, Petrology and habit of some diabase sheets in southeastern Pennsylvania: [s.n.], Open-File Report 49-33, 99 p. ill., maps ;29 cm.,
- Irelan, Burdge; Weaver, D. E.; Arvett, J. R., 1949, Chemical composition of Texas surface waters, 1948: Open-File Report 49-85, 58 p.,
- Johnson, Arthur, 1949, Preliminary report on water-power resources of Power Creek near Cordova, Alaska: U.S. Dept. of the Interior, Geological Survey, Open-File Report 49-13, 37 p. ill., maps, photos. ;28 cm.,
- Johnson, F. A., 1949, Report on water power possibilities of Lower Trinity River, California: Open-File Report 49-126, 64 p.,
- Keller, Fred; Henderson, John R., 1949, Total intensity aeromagnetic map of the Magnet Cove area, Hot Spring County, Arkansas: Open-File Report 49-34, 1 map.,
- Kennedy, George Clayton, 1949, Preliminary report on the geology of a portion of the southeast quarter of the Lyon quadrangle, Montana-Idaho: U.S. Geological Survey, Open-File Report 49-3, 19 p. ill., folded map ;27 cm.,
- Kinney, Douglas M., 1949, The Magnet Cove Rutile Company mine, Hot Spring County, Arkansas: U.S. Geological Survey, Open-File Report 50-6, 10 p. :folded map ;27 cm.,
- Klaer, F. H., Jr., 1949, Ground-water levels in Indiana: Open-File Report 49-87, 14 p., 10 plates,
- Koschmann, Albert Herbert, 1949, U.S. Geological Survey diamond drill logs, Kokomo (Tenmile) zinc-lead mining district, Colorado: U.S. Geological Survey, Open-File Report 50-18, 1 p.; folded map ;27 cm.,
- LaMoreaux, P. E., 1949, Outline of occurrence of ground water in Alabama: Open-File Report 49-88, 12 p.,
- Lamey, Carl A., 1949, Geology of a part of the Felch Mountain iron range, Michigan: U.S. Geological Survey, Open-File Report 49-35, 18 p.; 2 folded maps ;27 cm.,
- Lang, J. W., 1949, Memorandum on ground-water conditions in the vicinity of the South Houston oil field and the need for protecting the fresh-water sands from contamination: Open-File Report 49-89, 4 p.,
- Lang, J. W., 1949, Decline of pumping levels in Houston municipal wells, 1939-49: Open-File Report 49-90, 1 p.,
- Larrabee, David M.; Adams, K. S., 1949, Bumpus quarry, Albany, Maine: Open-File Report 49-36, 1 map,
- Lawrence, Fred F., 1949, Preliminary report on water-power resources of Little Susitna River and Cottonwood Creek, Alaska: [s.n.], Open-File Report 49-127, 24 leaves :ill., col. map ;29 cm.,
- Lemaire, E., 1949, Use of sulphitic liquid to reduce the resistance of quartzose rocks to drilling: Open-File Report 49-23-G, 6 leaves : ill. ; 27 cm.,
- Livingston, Penn; Hale, William., 1949, Investigation of the deep well in the Mesa Verde National Park, Colorado: Open-File Report 49-91, 15 p., 1 plate,
- Lowell, Wayne Russell, 1949, Geology of the Small Horn Canyon, Daly‘s Spur, Cedar Creek, and Dell areas, southwestern Montana: U.S. Geological Survey, Open-File Report 49-2, 2 folded maps ;27 cm.,
- Lusczynski, N. J., 1949, Release of data showing recovery of ground-water levels from June 1947 to December 1948 in Brooklyn, New York: Open-File Report 49-92, 2 p.,
- MacKevett, E. M., 1949, The Sally Ann copper area, Ubehebe Peak quadrangle, Inyo County, California: U.S. Geological Survey, Open-File Report 49-37, 11 p.; 2 folded maps ;30 cm.,
- Mann, J. F., 1949, Memorandum on deeper sources of water, to supplement progress report on water supply for the Point Mugu Naval Base, Ventura County, California, by J. F. Poland: Open-File Report 49-93, 2 p.,
- Maynard, James E.; Linehan, Rev. Daniel., 1949, Geologic interpretations of seismic data for various locations in Sturbridge, Sutton, Buckland and Douglas, Massachusetts: Open-File Report 49-38, 18 p.,
- Maynard, James E.; Linehan, Rev. Daniel., 1949, Geologic interpretations of seismic data for various locations in Topsfield, Massachusetts: Open-File Report 49-39, 4 p.,
- Maynard, James E.; Linehan, Rev. Daniel., 1949, Geologic interpretations of seismic data, Sturbridge, Massachusetts, Union-Mashapaug Road, Stations 327-335: Open-File Report 49-40, 3 p.,
- Maynard, James E.; Linehan, Rev. Daniel., 1949, Geologic interpretations of seismic data for various locations in Northbridge, Uxbridge, Sturbridge, Sutton and Lexington, Massachusetts: Open-File Report 49-41, 14 p.,
- Maynard, James E.; Linehan, Rev. Daniel., 1949, Geologic interpretations of seismic data for various locations in Waltham and Danvers, Massachusetts: Open-File Report 49-42, 5 p.,
- Maynard, James E.; Linehan, Rev. Daniel., 1949, Geological interpretation of seismic data, Reading, Massachusetts, grade separation at South Main Street, Route 128: Open-File Report 49-43, 4 p.,
- Maynard, James E.; Linehan, Rev. Daniel., 1949, Geologic interpretations for various locations in Waltham and Braintree, Massachusetts: Open-File Report 49-44, 8 p.,
- McAllister, James Franklin, 1949, Geology of the Lippincott lead area, Inyo County, California: U.S. Geological Survey, Open-File Report 49-17, 10 p. :maps ;28 cm.,
- Meyer, R. R., 1949, Memorandum on pumping tests on new public-supply wells in Salisbury, Maryland: Open-File Report 49-94, 6 p.,
- Morgan, A. M., 1949, Progress report on the geology and ground-water resources of the Cheyenne area, Wyoming: Open-File Report 49-95, 55 p., 7 plates,
- Olson, J. C.; Burns, R. E.; Hinrichs, E. N., 1949, The Dawley Canyon pegmatite area, Ruby Mountains, Elko County, Nevada: Open-File Report 49-45, 2 p.,
- Paulsen, C. G., 1949, Ground-water problems in the United States: Open-File Report 49-96, 13 p.,
- Phoenix, D. A., 1949, Geology of Clear Creek dam site, Ormsby and Douglas Counties, Nevada: Open-File Report 49-97, 5 p.,
- Phoenix, D. A., 1949, Ground-water conditions in the vicinity of Tonopah, Nye County, Nevada: Open-File Report 49-98, 12 p., 1 plate,
- Phoenix, D. A., 1949, Results and description of test drilling in Argenta Swamp near Battle Mountain, Nevada: Open-File Report 49-99, 11 p.,
- Poland, J. F., 1949, New well for water supply at Veterans Administration Hospital, Livermore, California: Open-File Report 49-100, 4 p.,
- Poland, J. F., 1949, Progress report on water supply for the Point Mugu Naval Base, Ventura County, California: Open-File Report 49-8, 45 p., 7 plates,
- Roberts, C. M., 1949, Ground-water levels and chloride-content data for townships of Riverhead and Southold, Suffolk County, New York: Open-File Report 49-101, 16 p.,
- Roberts, Ralph Jackson, 1949, Geology of the Antler Peak quadrangle, Nevada: U.S. Geological Survey, Open-File Report 49-47, 108 p. ill., maps ;29 cm.,
- Robinson, Thomas William, 1949, Areas and use of water by phreatophytes in the western United States: Open-File Report 51-6, 11 leaves ; 28 cm.,
- Rorabough, M. I., 1949, Memorandum on multiple-step drawdown tests, Southwest well field, Houston, Texas, February 1949: Open-File Report 49-102, 16 p.,
- Saunders, Margaret M.; Daniel, Jane; Thompson, Frances G., 1949, Bibliography of technical reports, articles, and memoranda published or otherwise released by the Ground Water Branch during the fiscal year ended June 30, 1948: Open-File Report 49-103, 14 p.,
- Saunders, Margaret M.; Daniel, Jane; Thompson, Frances G., 1949, Bibliography of technical reports, articles, and memoranda published or otherwise released by the Ground Water Branch during the fiscal year ended June 30, 1949: Open-File Report 49-104, 18 p.,
- Sceva, J. E.; Watkins, F. A., Jr.; Schlax, W. N., Jr., 1949, Geology and ground-water resources of the Wenas Creek Valley, Yakima County, Washington: Open-File Report 49-105, 81 p., 10 plates,
- Serr, E. F., III, 1949, Progress report-investigation of fluvial sediments, Snake River near Burge, North Dakota: Open-File Report 49-106, 13 p.,
- Siple, G. E., 1949, Ground-water investigations in the Savannah area, Georgia - South Carolina: Open-File Report 49-107, 5 p.,
- Sochava, V. B.; Translated, condensed, and emended by Poire, Inna Vital'evna, 1949, Microrelief forms in the tundras in Priamurye = Tundrovye formy mikrorel‘efa v Priamur‘e: U.S. Geological Survey, Open-File Report 49-46, 5 p. ill. ;27 cm.,
- Stoll, W. C., 1949, Mica deposits of Idaho, Latah County, and Mica deposits of Idaho and Montana: Open-File Report 49-7, 28 maps, no text,
- Stose, George Willis, 1949, Geologic maps of fossil localities in southeastern Pennsylvania Jan. 18, 1949: Open-File Report 49-48, 1 map,
- Stose, George Willis; Stose, A. J., 1949, Geologic maps of fossil localities in southeastern Pennsylvania: Open-File Report 49-49, 3 maps.,
- Sundstrom, R. W., 1949, Ground water in the vicinity of Amarillo and Lubbock, Texas: Open-File Report 49-108, 19 p.,
- Taylor, G. C., Jr., 1949, A ground-water reconnaissance of the Jacmel-Meyer Bench, Haiti: Open-File Report 49-109, 13 p.,
- Taylor, G. C., Jr., 1949, Ground water in Herrera Province and adjoining areas in Cocle, Los Santos, and Veraquas Provinces, Panama: Open-File Report 49-110, 20 p., 1 plate,
- Taylor, G. C., Jr.; Lemoine, R. C., 1949, Ground water in the Arcahaie Plain, Haiti: Open-File Report 49-111, 17 p.,
- Taylor, G. C., Jr.; Lemoine, R. C., 1949, Ground-water conditions in the Plaine de Moustiques, Haiti: Open-File Report 49-112, 5 p.,
- Taylor, G. C., Jr.; Lemoine, R. C., 1949, A ground-water reconnaissance in the Pine Forest region, Haiti: Open-File Report 49-113, 6 p.,
- Taylor, G. C., Jr.; Lemoine, R. C., 1949, Ground water in the Cul-de-Sac Plain, Haiti: Open-File Report 49-114, 60 p., 1 plate,
- Taylor, G. C., Jr.; Lemoine, R. C., 1949, Ground-water in the Gonaives Plain, Haiti: Open-File Report 49-115, 23 p.,
- Theis, C. V., 1949, Water levels in observation wells in Tatum-Lovington-Hobbs area, Lea County, New Mexico: Open-File Report 49-116, 6 p.,
- Thomas, H. E., 1949, Statement on the hydrology of pre-Pleistocene (?) aquifers, from a chapter on water resources to be included in a Geological Survey report on the geology of North Utah Valley: Open-File Report 49-117, 11 p.,
- Tracy, J. I., Jr.; Gordon, Mackenzie, Jr., 1949, Drill logs for part of Arkansas bauxite district: Open-File Report 49-50, 400 logs,
- Troxell, H. C.; Burgess, C. E.; Warren, M. A., 1949, Progress report on the cooperative investigation of springs and stream flow in the Tecolote Tunnel area of Santa Barbara County, California: Open-File Report 49-118, 18 p.,
- Turner, S. F. and others, 1949, Pumpage and ground-water levels in Arizona in 1948: Open-File Report 49-119, NA,
- Turner, S. F.; Moore, B. N.; Tolman, C. F., Jr.; Butler, B. S.; Hernen, R. M., 1949, Geology of the Tucson quadrangle, Arizona: Open-File Report 49-1, 20, 15 leaves :ill. folded maps ;28 cm.,
- Varnes, D. J., 1949, Preliminary report on ground-water movements at Helper, Carbon County, Utah: Open-File Report 49-51, 20 p.,
- Vhay, John Stewart, 1949, Preliminary map of the geology of the area south of Telluride, Colorado: Open-File Report 49-52, 1 map,
- Waring, G. A., 1949, Progress report on the geology and ground-water hydrology of the southeastern part of the Oahe-James River area, South Dakota: Open-File Report 49-120, 192 p., 2 volumes, 4 plates,
- Waring, G. A.; LaRocque, G. A., Jr., 1949, Progress report on the geology and ground-water hydrology of the Lower Missouri-Souris Unit; Part 1, Crosby-Mohall area, North Dakota: Open-File Report 49-121, 560 p., 11 plates,
- Whitcomb, H. A., 1949, Water-supply investigation at Torreon, Sandoval County, New Mexico: Open-File Report 49-122, 14 p., 1 plate,
- Whitcomb, H. A., 1949, Water-supply investigation of Whitehorse Lake area, McKinley County, New Mexico: Open-File Report 49-123, 12 p.,
- Whitcomb, H. A.; Halpenny, L. C., 1949, Memorandum on location of proposed domestic well about 1 mile west of Tse Bonita Trading Post, Navajo Indian Reservation, Apache County, Arizona: Open-File Report 49-124, 2 p.,
- Williams, C. C., 1949, Ground-water in the Newcastle area, Wyoming: Open-File Report 49-125, 18 p.,
- Witkind, Irving Jerome, 1949, Preliminary geologic map of the Dagmar No. 4 quadrangle, Montana-North Dakota: Open-File Report 49-11, 1 map,
- Zapp, Alfred Dexter, 1949, Geology of the Andersonville bauxite district, Georgia: U.S. Geological Survey, Open-File Report 49-6, 7 p. ill., maps ;27 cm.,
- Zietz, Isidore; Henderson, R. G., 1949, Aeromagnetic maps and second vertical derivative maps of Great Sitkin Island, Northern Adak Island, and part of northeastern Umnak Island, Alaska: Open-File Report 49-9, 4 p., 8 maps,
