1. Report on the mound explorations of the Bureau of Ethnology [electronic resource] / Cyrus Thomas ; introduction by Bruce D. Smith. Thomas, Cyrus, 1825-1910 Washington, D.C. : Smithsonian Institution Press, 1985. Book Online
2. Vision by radio, radio photographs, radio photograms [electronic resource] / C. Francis Jenkins ... Jenkins, C. Francis (Charles Francis), 1867-1934 Washington, D.C. : National Capital Press, c1925. Book Online
3. History of the Panama Canal [electronic resource] : its construction and builders / by Ira E. Bennett ; associate editors, John Hays Hammond ... [et al.]. Bennett, Ira E. (Ira Elbert), 1868-1957 Washington : Historical Pub. Co., 1915 (Chicago ; New York : Rogers & Co.) Book Online
4. The National Erectors' Association and the International Association of Bridge and Structural Ironworkers [electronic resource] / by Luke Grant. United States. Commission on Industrial Relations Washington, D.C. : [s.n.], 1915 (Chicago : Barnard & Miller Print) Book Online
5. Ten years' work of a mountain observatory [electronic resource] : a brief account of the Mount Wilson solar observatory of the Carnegie institution of Washington / by George Ellery Hale. Hale, George Ellery, 1868-1938 Washington, D.C. : Carnegie Institution of Washington, 1915 (Gibson Bros.) Book Online
6. Color standards and color nomenclature [electronic resource] / by Robert Ridgway. Ridgway, Robert, 1850-1929 Washington, D.C. : The author, 1912 (Baltimore : A. Hoen & Co.) Book Online
7. Researches on the motion of the moon [electronic resource] / by Simon Newcomb. Part II, The mean motion of the moon and other astronomical elements derived from observations of eclipses and occultations extending from the period of the Babylonians until A.D. 1908. Newcomb, Simon, 1835-1909 Washington : G.P.O., 1912. Book Online
8. The strength of reinforced concrete beams [electronic resource] : results of tests of 333 beams (first series) / by Richard L. Humphrey and Louis H. Losse (June 27, 1911). Humphrey, Richard Lewis, 1869-1928 Washington : G.P.O., 1912. Book Online
9. Investigation of inequalities in the motion of the moon produced by the action of the planets [electronic resource] / by Simon Newcomb ; assisted by Frank E. Ross. Newcomb, Simon, 1835-1909 Washington : Carnegie Institution of Washington, 1907 (Lancaster, Pa. : Press of the New Era Print. Co.) Book Online
10. Contributions to the history of American geology [electronic resource] / by George P. Merrill. Merrill, George P. (George Perkins), 1854-1929 Washington : G.P.O., [1906] Book Online
11. The Washington electrical hand-book [electronic resource] : being a guide for visitors from abroad attending the International Electrical Congress, St. Louis, Mo. September, 1904. American Institute of Electrical Engineers Washington, D.C. : American Institute of Electrical Engineers, 1904. Book Online
12. Studies on the meteorological effects in the United States of the solar and terrestrial physical processes [electronic resource] / by Frank H. Bigelow ; prepared under the direction of Willis L. Moore. Bigelow, Frank H. (Frank Hagar), 1851-1924 Washington : Weather Bureau, 1903. Book Online
13. Eclipse meterology and allied problems [electronic resource] / prepared under direction of Willis I. Moore ... by Frank H. Bigelow. Bigelow, Frank H. (Frank Hagar), 1851-1924 Washington : G.P.O., 1902. Book Online
14. Wireless telegraphy [electronic resource] / by G. Marconi. Marconi, Guglielmo, 1874-1937 [Washington : G.P.O., 1902] Book Online
15. Report of an expedition to Muir Glacier, Alaska [electronic resource] : with determinations of latitude and the magnetic elements at Camp Muir, Glacier Bay / by Harry Fielding Reid. Reid, Harry Fielding, 1859-1944 Washington : Gov't Print. Off, 1892. Book Online
16. Reports upon the specimens obtained from borings made in 1874 between the Mississippi River and Lake Borgne, at the site proposed for an outlet for floof waters [electronic resource] / by Eugene W. Hilgard and F.V. Hopkins ; with a letter of transmittal from G.K. Warren, being a supplement to the report of the Commission of engineers of January 16, 1875. Hilgard, Eugene W. (Eugene Woldemar), 1833-1916 Washington : G.P.O., 1878. Book Online
17. The Alaskan gold fields and the opportunities they offer for capital and labor [electronic resource] / by Sam C. Dunham. Dunham, Sam C. (Sam Clarke), 1855-1920 Washington [D.C.] : G.P.O., 1898. Book Online
18. The alkali soils of the Yellowstone Valley [electronic resource] : from a preliminary investigation of the soils near Billings, Montana / by Milton Whitney and Thos. H. Means. Whitney, Milton, 1860-1927 Washington [D.C.] : G.P.O., 1898. Book Online
19. Climate of Cuba [electronic resource] : also a note on the weather of Manila / prepared under direction of Willis L. Moore by W.F.R. Phillips. Phillips, W. F. R. (William Fowke Ravenel), 1863-1935 Washington [D.C.] : Weather Bureau, 1898. Book Online
20. Forest growth and sheep grazing in the Cascade mountains of Oregon [electronic resource] / by Frederick V. Coville. Coville, Frederick V. (Frederick Vernon), 1867-1937 Washington : Govt. Print. Office, 1898. Book Online