01499cam a22002891 4500 gs 11000229 DLC 20260227111311.0 791116s1908 sdufb 000 0 eng c gs 11000229 (OCoLC)5701434 U.S. Geol. survey SdU OCoLC DLC n-us-sd TN24.S8 A3 no. 8 (265) S2b no.8 O'Harra, Cleophas C. (Cleophas Cisney), 1866-1935. The cement resources of the Black hills. Including tests on cements made from Black hills material. By Cleophas C. O'Harra, PH. D., M. F. Coolbaugh, M. A., M. A. Ehle, jr., E. M., [and] Chas. H. Fulton, E. M. Rapid City, S.D., 1908. 55 p. plates (1 fold.) maps. 21 cm. Bulletin no. 8. South Dakota school of mines. Departments of geology, chemistry, mining and metallurgy pt. I. The geology of the Black hills cement material, by C. C. O'Harra.--pt. II. Outline for the analysis of [1] cements and cement materials, by M. F. Coolbaugh.--pt. III. The preparation of the cement from the raw material for experimental purposes, by C. H. Fulton.--pt. IV. Experimental tests on Black hills cement, by Mark Ehle, jr. Cement South Dakota. Coolbaugh, Melville Fuller, 1877- Ehle, Mark A., jr. Fulton, Charles Herman, 1874-1944. South Dakota School of Mines and Technology. Bulletin no. 8. 25011 25011