- Anderson, Robert; Taff, J. A., 1909, Contributions to economic geology, 1908, Part I, Metals and nonmetals except fuels--Asphalt: Bulletin 380-H, p. 283-298,
- Arnold, Ralph, 1909, Paleontology of the Coalinga district, Fresno and Kings counties, California: Govt. Print. Off., Bulletin 396, 173 p.,
- Arnold, Ralph; Johnson, H. R., 1909, Contributions to economic geology, 1908, Part I, Metals and nonmetals except fuels--Salines: Bulletin 380-L, p. 369-372,
- Ashley, Harrison Everett, 1909, The colloid matter of clay and its measurement: Govt. Print. Off., Bulletin 388, 65 p. :ill., pl. ;24 cm.,
- Bastin, Edson Sunderland; Davis, Charles Albert, 1909, Peat deposits of Maine: Govt. Print. Off., Bulletin 376, 127 p.,
- Becker, George Ferdinand, 1909, Relations between local magnetic disturbances and the genesis of petroleum: Bulletin 401, 24 p.,
- Belden, A. W.; Delamater, George Richmond; Groves, J. W., 1909, Washing and coking tests of coal at the fuel-testing plant, Denver, Colorado, July 1, 1907, to June 30, 1908: Government Printing Office, Bulletin 368, 54 p. :ill. ;23 cm.,
- Brooks, A. H.; Davis, C. A., 1909, Mineral resources of Alaska, report on progress of investigations in 1908--Administrative report: Bulletin 379-A, p. 1-66,
- Brooks, Alfred Hulse and others, 1909, Mineral resources of Alaska : report on progress of investigations in 1908: Govt. Print. Off., Bulletin 379, 418 p., [10] folded leaves of plates :ill. ;24 cm.,
- Burchard, E. F.; Harder, E. C.; Paige, Sidney., 1909, Contributions to economic geology, 1908, Part I, Metals and nonmetals except fuels--Iron and Manganese: Bulletin 380-E, p. 169-282,
- Burrows, John Shober; Randall, Dwight T., 1909, Results of purchasing coal under Government specifications, with a paper on burning the small sizes of anthracite for heat and power purposes: Government Printing Office, Bulletin 378, 44 p. ;23 cm.,
- Calkins, Frank Cathcart; MacDonald, D. F., 1909, A geological reconnaissance in northern Idaho and northwestern Montana, with notes on the economic geology: Govt. Print. Off., Bulletin 384, 112 p. :ill., fold. map ;24 cm.,
- Calvert, William R., 1909, Geology of the Lewistown coal field, Montana: Govt. Print. Off., Bulletin 390, 83 p. :ill., v pl. (incl. 2 fold maps) ;24 cm.,
- Campbell, M. R., 1909, Contributions to economic geology, 1907, Part II, Coal and lignite--Coal Fields of North Dakota and Montana: Bulletin 341-A, p. 1-122,
- Campbell, Marius Robinson, 1909, Contributions to economic geology, 1907: Part II - coal and lignite: U.S. G.P.O., Bulletin 341, 444 p. :ill., charts, maps (some fold.) ;24 cm.,
- Capps, Stephen Reid, Jr., 1909, The pleistocene geology of the Leadville quadrangle, Colorado: Govt. print. off., Bulletin 386, 99 p. :illus. VIII pl. (incl. fold. map in pocket) diagrs. ;23 1/2 cm.,
- Chamberlin, Rollin Thomas, 1909, Notes on explosive mine gases and dusts with special reference to explosions in the Monongah, Darr, and Naomi coal mines: Govt. Print. Off., Bulletin 383, 67 p. :diagr. ;24 cm.,
- Dale, T. Nelson, 1909, The granites of Vermont: Govt. Print. Off., Bulletin 404, 138 p.,
- Darton, Nelson Horatio, 1909, Structural materials in parts of Oregon and Washington: Govt. Print. Off., Bulletin 387, 33 p. :ill., ix pl. (incl. 2 fold. maps) ;24 cm.,
- Darton, Nelson Horatio; Siebenthal, Claude Ellsworth, 1909, Geology and mineral resources of the Laramie Basin, Wyoming (a preliminary report): Govt. Print. Off., Bulletin 364, 81 p. :ill., maps ;24 cm.,
- Fernald, Robert Heywood, 1909, Recent development of the producer-gas power plant in the United States: Govt. Print. Off., Bulletin 416, 82 p. :2 fold maps (in pocket) diagrs. ;24 cm.,
- Fernald, Robert Heywood; Smith, C. D.; Clement, J. K.; Grine, H. A., 1909, Incidental problems in gas-producer tests: Govt. Print. Off., Bulletin 393, 29 p. :ill. ;24 cm.,
- Fisher, Cassius Asa, 1909, Geology of the Great Falls coal field, Montana: Govt. Print. Off., Bulletin 356, 85 p.,
- Gale, H. S., 1909, Contributions to economic geology, 1907, Part II, Coal and lignite--Coal Fields of Colorado, New Mexico, Utah, Oregon, and Virginia: Bulletin 341-C, p. 283-444,
- Gannett, Samuel Stinson; Baldwin, David Henry, 1909, Results of spirit leveling in West Virginia, 1896 to 1908, inclusive: Government Printing Office, Bulletin 399, 81 p. ;23 cm.,
- Gannett, Samuel Stinson; Baldwin, David Henry, 1909, Results of spirit leveling in Ohio, 1898 to 1908, inclusive: Government Printing Office, Bulletin 411, 147 p. ;23 cm.,
- Geological Survey (U.S.), 1909, Papers on the conservation of mineral resources (reprinted from report of the National Conservation Commission, February, 1909): Govt. Print. Off., Bulletin 394, 214 p. :xii pl. (part. fold., incl. maps) diagrs. ;24 cm.,
- Girty, George Herbert, 1909, The fauna of the Caney shale of Oklahoma: Govt. Print. Off., Bulletin 377, 106 p.,
- Goss, W. F. M., 1909, The utilization of fuel in locomotive practice: Govt. Print. Off., Bulletin 402, 28 p. :ill. ;24 cm.,
- Grant, U. S.; Higgins, D. F., Jr., 1909, Mineral resources of Alaska, report on progress of investigations in 1908--Copper mining and prospecting on Prince William Sound: Bulletin 379-C, p. 87-152,
- Hayes, C. W., 1909, Contributions to economic geology, 1908, Part I, Metals and nonmetals except fuels--Introduction: Bulletin 380-A, p. 1-98,
- Hayes, C. W.; Lindgren, Waldemar, 1909, Contributions to economic geology, 1908: Part I - metals and nonmetals, except fuels: U.S. Govt. Print. Off., Bulletin 380, 406 p., 2 folded leaves of plates :ill., maps ;24 cm.,
- Hess, F. L., 1909, Contributions to economic geology, 1908, Part I, Metals and nonmetals except fuels--Rare Metals: Bulletin 380-D, p. 131-168,
- Hillebrand, W. F.; Schaller, Waldemar Theodore, 1909, The mercury minerals from Terlingua, Texas: Govt. Print. Off., Bulletin 405, 174 p. :vi pl. (partly fold.) diagrs. ;24 cm.,
- Humphrey, Richard Louis, 1909, The fire-resistive properties of various building materials: Government Printing Office, Bulletin 370, 99 p. :ill. ;23 cm.,
- Kindle, Edward Martin, 1909, The Devonian fauna of the Ouray limestone: Govt. print. off., Bulletin 391, 60 p. :x pl. ;23 1/2 cm.,
- Lee, Willis Thomas; Girty, George Herbert, 1909, The Manzano group of the Rio Grande valley, New Mexico: Govt. Print. Off., Bulletin 389, 141 p. :xii pl. (incl. map) diagrs. ;24 cm.,
- Lindgren, Waldemar, 1909, Contributions to economic geology, 1908, Part I, Metals and nonmetals except fuels--Lead and Zinc: Bulletin 380-C, p. 123-130,
- Martin, G. C., 1909, Contributions to economic geology, 1908, Part I, Metals and nonmetals except fuels--Cement and Concrete Materials: Bulletin 380-J, p. 314-345,
- Matson, G. C., 1909, Contributions to economic geology, 1908, Part I, Metals and nonmetals except fuels--Clays: Bulletin 380-K, p. 346-367,
- Moffit, F. H.; Knopf, Adolph, 1909, Mineral resources of Alaska, report on progress of investigations in 1908--Mining in the Kotsina-Chitina, Chistochina, and Valdez Creek regions: Bulletin 379-D, p. 153-180,
- Moffit, Fred Howard; Maddren, Alfred Geddes, 1909, Mineral resources of the Kotsina-Chitina region, Alaska: Govt. print. off., Bulletin 374, 103 p. :illus., x pl. (incl. 2 fold. maps in pocket) diagrs. ;24 cm.,
- Munroe, Charles E.; Hall, Clarence A., 1909, A primer on explosives for coal miners: Government Printing Office, Bulletin 423, 61 p. :ill., 9 plates (incl. front.) diagrs. ;23 cm.,
- Nickles, John M., 1909, Bibliography of North American geology for 1908, with subject index: Govt. Print. Off., Bulletin 409, 148 p., v. ;24 cm.,
- Osborn, Henry Fairfield; Matthew, William Diller, 1909, Cenozoic mammal horizons of western North America, with faunal lists of the Tertiary Mammalia of the West: Govt. Print. Off., Bulletin 361, 138 p.,
- Paige, Sidney, 1909, Contributions to economic geology, 1908, Part I, Metals and nonmetals except fuels--Building Stones: Bulletin 380-I, p. 299-313,
- Prindle, Louis Marcus, 1909, The Fortymile quadrangle, Yukon-Tanana region, Alaska: Govt. Print. Off., Bulletin 375, 52 p.,
- Randall, Dwight T.; Weeks, H. T., 1909, The smokeless combustion of coal in boiler plants, with a chapter on central heating plants: Government Printing Office, Bulletin 373, 188 p. :ill. ;23 cm.,
- Ransome, F. L., 1909, Contributions to economic geology, 1908, Part I, Metals and nonmetals except fuels--Copper: Bulletin 380-B, p. 99-122,
- Ransome, Frederick Leslie, 1909, Notes on some mining districts in Humboldt County, Nevada: Government Printing Office, Bulletin 414, 75 p. :fold. map ;23 cm.,
- Ray, Walter T.; Kreisinger, Henry, 1909, The significance of drafts in steam-boiler practice: Government Printing Office, Bulletin 367, 61 p. :ill. ;23 cm.,
- Ray, Walter T.; Kreisinger, Henry, 1909, Comparative tests of run-of-mine and briquetted coal on the torpedo boat Biddle: Govt. Print. Off., Bulletin 403, 49 p. :ill. ;24 cm.,
- Ray, Walter T.; Kreisinger, Henry, 1909, Tests of run-of-mine and briquetted coal in a locomotive boiler: Government Printing Office, Bulletin 412, 32 p. :ill. ;23 cm.,
- Richardson, G. B., 1909, Reconnaissance of the Book Cliffs coal field, between Grand River, Colorado and Sunnyside, Utah: Govt. Print. Off., Bulletin 371, 54 p. :illus., x pl. (part fold., incl. map) ;24 cm.,
- Schlundt, Herman; Moore, Richard Bishop, 1909, Radioactivity of the thermal waters of Yellowstone National Park: Govt. Print. Off., 1909 Bulletin 395, 35 p. :iv pl., diagrs. ;24 cm.,
- Schrader, Frank Charles, 1909, Mineral deposits of the Cerbat Range, Black Mountains, and Grand Wash Cliffs, Mohave County, Arizona: Govt. Print. Off., Bulletin 397, 226 p. :ill., xvi pl. (part fold., incl. maps) diagrs. ;24 cm.,
- Smith, Philip Sidney; Henshaw, Fred F., 1909, Mineral resources of Alaska, report on progress of investigations in 1908--Recent developments in southern Seward Peninsula: Bulletin 379-F, p. 267-418,
- Sterrett, D. B., 1909, Contributions to economic geology, 1908, Part I, Metals and nonmetals except fuels--Miscellaneous Nonmetallic Products: Bulletin 380-N, p. 382-406,
- Strong, Robert M., 1909, Commercial deductions from comparisons of gasoline and alcohol tests on internal-combustion engines: Govt. Print. Off., Bulletin 392, 38 p. ;24 cm.,
- Taff, J. A., 1909, Contributions to economic geology, 1907, Part II, Coal and lignite--Coal Fields of Wyoming: Bulletin 341-B, p. 123-282,
- Van Hise, Charles Richard; Leith, Charles Kenneth, 1909, Pre-Cambrian geology of North America: Govt. Print. Off., Bulletin 360, 939 p., l folded leaf of plates :maps ;24 cm.,
- Weeks, Fred Boughton; Nickles, John M., 1909, Bibliography of North American geology for 1906 and 1907, with subject index: Govt. Print. Off., Bulletin 372, 317 p. ;24 cm.,
- White, David, 1909, The effect of oxygen in coal: Govt. Print. Off., Bulletin 382, 74 p. :9 fold. pl. (incl. tables) ;24 cm.,
- Woodruff, E. G., 1909, Contributions to economic geology, 1908, Part I, Metals and nonmetals except fuels--Sulphur and Pyrite: Bulletin 380-M, p. 373-381,
- Wright, C. W., 1909, Mineral resources of Alaska, report on progress of investigations in 1908. Mining in southeastern Alaska: Bulletin 379-B, p. 67-86,
- Wright, Charles L., 1909, Briquetting tests at the United States fuel-testing plant, Norfolk, Virginia, 1907-8: Govt. Print. Off., Bulletin 385, 41 p. :ix pl. (1 fold.) ;24 cm.,
