- Bascom, Florence; Stose, George Willis, 1938, Geology and mineral resources of the Honeybrook and Phoenixville quadrangles, Pennsylvania: U.S. Govt. Print. Off., Bulletin 891, v, 145 p. :incl. illus., tables, 11 pl. (incl. fold. map (in pocket) fold. diagr.) ;23 cm.,
- Bass, N. W.; Kennedy, L. E.; Dillard, W. R.; Leatherock, Otto; Hengst, J. H., 1938, Subsurface geology and oil and gas resources of Osage County, Oklahoma. Part 1, Townships 22 and 23 north, ranges 10 and 11 east: Bulletin 900-A, 1-45 p.,
- Bradley, W. H.; Pepper, J. F., 1938, Geologic structure and occurrence of gas in part of southwestern New York. Part 1, Structure and gas possibilities of the Oriskany sandstone in Steuben, Yates, and parts of the adjacent counties: Bulletin 899-A, 1-68 p.,
- Callaghan, Eugene, 1938, Preliminary report on the alunite deposits of the Marysvale region, Utah: U.S. Govt. Print. Off., Bulletin 886-D, iv, 91-134 p. :illus. ;24 cm.,
- Callaghan, Eugene; Buddington, A. F., 1938, Metalliferous mineral deposits of the Cascade range in Oregon: U.S. Govt. Print. Off., Bulletin 893, viii, 141 p. :incl. illus., tables, 22 pl. (part. fold. incl. maps, plans) ;23 cm.,
- compiled by Andrews, D. A., 1938, Preliminary map showing geologic structure of the Byron-Frannie Area, Wyoming: Open-File Report 38-5, map,
- compiled by Ayvazoglou, W., 1938, Geophysical abstracts, 88-91, January-December 1937. Geophysical abstracts 89, April-June 1937: Bulletin 895-B, 43-92 p.,
- compiled by Ayvazoglou, W., 1938, Geophysical abstracts, 88-91, January-December 1937. Geophysical abstracts 90, July-September 1937: Bulletin 895-C, 93-196 p.,
- compiled by Ayvazoglou, W., 1938, Geophysical abstracts, 88-91, January-December 1937. Geophysical abstracts 91, October-December 1937: Bulletin 895-D, 137-203 p.,
- compiled by Ayvazoglou, W., 1938, Geophysical abstracts 92-95, January-December 1938: U.S. Govt. Print. Off., Bulletin 909, 222 p. ;24 cm.,
- compiled by Ayvazoglou, W., 1938, Geophysical abstracts, 92-95, January-December 1938. Geophysical abstracts 92, January-March 1938: Bulletin 909-A, 1-50 p.,
- compiled by Dane, Carle Hamilton; Bryson, R. P., 1938, Preliminary map showing geologic structure of part of the Rio Arriba County, New Mexico: Open-File Report 38-4, 1 map : col. ; sheet 82 x 74 cm.,
- Cushman, J. A.; McGlamery, Winnie, 1938, Oligocene foraminifera from Choctaw Bluff, Alabama: Professional Paper 189-D, p. 103-119,
- Dane, C. H.; Rothrock, H. E.; Williams, J. S., 1938, Geology and coal resources of the southern part of the Oklahoma coal field. Part 3, The Quinton-Scipio district, Pittsburg, Haskell, and Latimer Counties: Bulletin 874-C, 151-253 p.,
- Eckel, Edwin Butt, 1938, The brown iron ores of eastern Texas: U. S. Govt. Print. Off., Bulletin 902, vi, 157 p. incl. illus. :tables. 20 pl. (incl. fold. maps, fold. diagr.) ;23 cm.,
- Geological Survey (U.S.), 1938, Spirit leveling in Missouri, 1896-1938. Part 1, Southeastern Missouri, 1896-1937: Bulletin 898-A, 1-132 p.,
- Geological Survey (U.S.), 1938, Spirit leveling in Missouri, 1896-1938. Part 2, South-central Missouri, 1896-1937: Bulletin 898-B, 133-308 p.,
- Geological Survey (U.S.), 1938, Spirit leveling in Missouri, 1896-1938. Part 3, East-central Missouri, 1896-1937: Bulletin 898-C, 309-450 p.,
- Geological Survey (U.S.), 1938, Spirit leveling in Missouri, 1896-1938. Part 4, Northwestern Missouri, 1896-1937: Bulletin 898-D, 451-580 p.,
- Geological Survey (U.S.), 1938, Surface water supply of the United States, 1936, Part I, North Atlantic slope basins: U.S. Govt. Print. Off., Water Supply Paper 801, viii, 402 p. ;23 cm.,
- Geological Survey (U.S.), 1938, Surface water supply of the United States, 1936, Part II, South Atlantic slope and eastern Gulf of Mexico basins: U.S. Govt. Print. Off., Water Supply Paper 802, vi, 228 p. ;23 cm.,
- Geological Survey (U.S.), 1938, Surface water supply of the United States, 1936, Part III, Ohio River basin: U.S. Govt. Print. Off., Water Supply Paper 803, vii, 453 p. ;23 cm.,
- Geological Survey (U.S.), 1938, Surface water supply of the United States, 1936, Part V, Hudson Bay and upper Mississippi River basin: U.S. Govt. Print. Off., Water Supply Paper 805, vi, 288 p. ;23 cm.,
- Geological Survey (U.S.), 1938, Surface water supply of the United States, 1936, Part VI, Missouri River basin: U.S. Govt. Print. Off., Water Supply Paper 806, 370 p. ;23 cm.,
- Geological Survey (U.S.), 1938, Surface water supply of the United States, 1936 : Part 10. The Great Basin: U.S. G.P.O., Water Supply Paper 810, iv, 90 p. :ill. ;23 cm.,
- Geological Survey (U.S.), 1938, Surface water supply of the United States, 1937, Part II, South Atlantic slope and eastern Gulf of Mexico basins: U.S. Govt. Print. Off., Water Supply Paper 822, vi, 266 p. ;23 cm.,
- Geological Survey (U.S.), 1938, Surface water supply of the United States, 1937, Part IV, St. Lawrence River basin: U.S. Govt. Print. Off., Water Supply Paper 824, iv, 150 p. ;23 cm.,
- Geological Survey (U.S.), 1938, Surface water supply of the United States, 1937, Part V, Hudson Bay and upper Mississippi River basin: U.S. Govt. Print. Off., Water Supply Paper 825, viii, 334 p. ;23 cm.,
- Geological Survey (U.S.), 1938, Surface water supply of the United States, 1937, Part VI, Missouri River basin: U.S. Govt. Print. Off., Water Supply Paper 826, vii, 376 p. ;23 cm.,
- Geological Survey (U.S.), 1938, Surface water supply of the United States, 1937, Part VII, Lower Mississippi River basin: U.S. Govt. Print. Off., Water Supply Paper 827, iv, 173 p. ;23 cm.,
- Geological Survey (U.S.), 1938, Surface water supply of the United States, 1937, Part IX, Colorado River basin: U.S. Govt. Print. Off., Water Supply Paper 829, v, 197 p. ;23 cm.,
- Geological Survey (U.S.), 1938, Surface water supply of the United States, 1937 : Part 10, The Great Basin: U.S. Govt. Print. Off., Water Supply Paper 830, iv, 97 p. ;23 cm.,
- Geological Survey (U.S.), 1938, Surface water supply of the United States, 1937 : Part 11. Pacific slope basins in California: U.S. Govt. Print. Off., Water Supply Paper 831, vii, 358 p. ;23 cm.,
- Geological Survey (U.S.), 1938, Surface water supply of the United States, 1937 : Part 12, North Pacific drainage basins: U.S. Govt. Print. Off., Water Supply Paper 832, v, 173 p. ;23 cm.,
- Geological Survey (U.S.), 1938, Surface water supply of the United States, 1937 : Part 13 Snake River basin: Govt. Print. Off., Water Supply Paper 833, 220 p. :tables.,
- Geological Survey (U.S.), 1938, Surface water supply of the United States, 1937 : Part 14, Pacific slope basins in Oregon and lower Columbia River basin: U.S. Govt. Print. Off., Water Supply Paper 834, v, 188 p. ;23 cm.,
- Gregory, H. E., 1938, The San Juan country, a geographic and geologic reconnaissance of southeastern Utah: Professional Paper 188, 123 p.,
- Grover, Nathan C.; Carson, Max H., 1938, Surface water supply of Hawaii : July 1, 1935 to June 30, 1936: U.S. Govt. Print. Off., Water Supply Paper 815, iv, 108 p. ;23 cm.,
- Grover, Nathan Clifford; Mansfield, George Rogers., 1938, Floods of Ohio and Mississippi Rivers, January-February 1937, with a section on the Flood deposits of the Ohio River, January-February 1937: U. S. Govt. print. off., Water Supply Paper 838, xii, 746 p. incl. illus., tables. :25 pl. (part fold., incl. maps, diagr.) ;23 cm.,
- Helland, R. O., 1938, Water utilization in the basin of the Chewaucan River, Oregon: Open-File Report 38-1, 51 p.; 4 maps,
- Helland, R. O., 1938, Storage possibilities on Nehalem River, Oregon: Open-File Report 38-2, 42 p.; 2 maps; 10 ills.,
- Holland, William T.; Jarvis, Clarence S., 1938, Inventory of unpublished hydrologic data: U.S. G.P.O., Water Supply Paper 837, ii, 77 p. :chiefly tables ;24 cm.,
- Hoyt, John Clayton, 1938, Drought of 1936, with discussion on the significance of drought in relation to climate: Government Printing Office, Water Supply Paper 820, 62p. :ill., maps ;24 cm.,
- Hunt, C. B., 1938, Igneous geology and structure of the Mount Taylor volcanic field, New Mexico: Professional Paper 189-B, p. 51-80,
- Kinnison, Harvey B.; Conover, L. F.; Bigwood, B. L., 1938, Stages and flood discharges of the Connecticut River at Hartford, Connecticut: U.S. G.P.O., Water Supply Paper 836-A, 1-18 p. :ill. ;24 cm.,
- Knechtel, Maxwell M.; Lohr, E. W., 1938, Geology and ground-water resources of the Valley of Gila River and San Simon Creek, Graham County, Arizona; with a section on the Chemical character of the ground water: U.S. G.P.O., Water Supply Paper 796-F, iv, p. 181-222, [7] leaves (some folded) :ill., maps (1 col.) ;23 cm.,
- Lasky, Samuel Grossman, 1938, Geology and ore deposits of the Lordsburg mining district, Hidalgo County, New Mexico: U.S. Govt. Print. Off., Bulletin 885, v, 62 p. :ill., 25 pl. part fold. (incl. maps, plans, diagrs.) ;29 cm.,
- Lohman, K. E., 1938, Pliocene diatoms from the Kettleman Hills, California: Professional Paper 189-C, p. 81-102,
- Lugn, Alvin Leonard; Wenzel, Leland Keith., 1938, Geology and ground-water resources of south-central Nebraska, with special reference to the Platte River Valley between Chapman and Gothenburg: U.S. Govt. Print. Off., Water Supply Paper 779, vii, 242 p. incl. illus., tables. :16 pl., part fold. (incl. maps, diagrs.) ;23 cm.,
- MacNeil, F. S., 1938, Species and genera of Tertiary Noetinae: Professional Paper 189-A, p. 1-49,
- Meinzer, O. E.; Wenzel, L. K., 1938, Water levels and artesian pressures in observation wells in the United States in 1937: U.S. G.P.O., Water Supply Paper 840, iv, 657 p. ;24 cm.,
- Mertie, John Beaver, 1938, Gold placers of Fortymile, Eagle, and Circle districts, Alaska: U.S. G.P.O., Bulletin 897-C, p. 133-261,
- Mertie, John Beaver, Jr., 1938, The Nushagak district, Alaska: U.S. Govt. Print. Off., Bulletin 903, iv, 96 p. :incl. illus., tables, diagrs. 12 pl. (part fold. incl. 2 maps (in pocket) ;23 cm.,
- Moffit, Fred Howard, 1938, Geology of the Chitina Valley and adjacent area, Alaska: U.S. Govt. Print. Off., Bulletin 894, iv, 137 p. :illus., xii pl. (incl. 8 fold. maps) ;23 cm.,
- Moffit, Fred Howard, 1938, Geology of the Slana-Tok district, Alaska: U.S. Govt. print. off., Bulletin 904, iv, 54 p. incl. illus., tables, diagrs. :4 pl. (incl. fold. map (in pocket)) ;23 cm.,
- Monroe, Watson H., 1938, Geologic map of Lowndes County, Mississippi: Open-File Report 38-3, 1 map,
- Peter, A.; translated by Britt, Severine, 1938, Landslide in Moutier-Court Gorges (Glissement de terrain dans les gorges de Moutier-Court): U.S. Geological Survey, Open-File Report 49-23-B, 9 leaves :ill., maps ;27 cm.,
- Reed, John C.; Wells, Francis Gerritt, 1938, Geology and ore deposits of the southwestern Arkansas quicksilver district: U. S. Govt. Print. Off., Bulletin 886-C, 15-90 p. :ill., maps ;23 cm.,
- Roundy, P. V.; and others, 1938, Government explores public phosphate lands in Florida: Open-File Report 38-6, 3 p.,
- Rubey, W. W., 1938, The force required to move particles on a stream bed: Professional Paper 189-E, p. 121-141,
- Scofield, Carl S., 1938, Quality of water of the Rio Grande Basin above Fort Quitman, Texas, analytical data: U.S. Geological Survey ; Water Supply Paper 839, ii, 294 p. :charts ;23 cm.,
- Smith, P. S., 1938, Mineral production of Alaska in 1937: Open-File Report 38-7, 6 p.,
- Smith, P. S., 1938, Mining in Alaska in 1937: Open-File Report 38-8, 5 p.,
- Smith, Philip Sidney, 1938, Mineral industry of Alaska in 1936: U.S. G.P.O., Bulletin 897-A, 107 p. :ill., folded map ;23 cm.,
- Staack, John George, 1938, Spirit leveling in Vermont, 1896-1935: U.S. Govt. print. off., Bulletin 888, ii, 155 p. incl. illus. (map), tables. pl. ;23 cm.,
- Staack, John George, 1938, Spirit leveling in Kansas, 1896-1935: U.S. Govt. Print. Off., Bulletin 889, 88 p.,
- Stearns, Harold T.; Crandall, Lynn; Steward, Willard G., 1938, Geology and ground-water resources of the Snake River Plain in southeastern Idaho: U.S. Govt. Print. Off., Water Supply Paper 774, ix, 268 p. incl. illus., tables. :31 pl. (part fold., incl. maps, diagrs.) ;23 cm.,
- Stephenson, L. W., 1938, A new Upper Cretaceous rudistid from the Kemp clay of Texas: Professional Paper 193-A, p. 1-15,
- Trask, P. D., 1938, Relation of salinity to the calcium carbonate content of marine sediments: Professional Paper 186-N, p. 273-299,
- Tuck, Ralph, 1938, The Valdez Creek mining district, Alaska, in 1936: U.S. Govt. Print. Off., Bulletin 897-B, ii, 109-131 p. :illus., maps ;24 cm.,
- Woodring, W. P., 1938, Lower Pliocene mollusks and echinoids from the Los Angeles Basin, California, and their inferred environment: Professional Paper 190, 67 p.,
