Books by Ellis S. Hertzog:
Books in the extended shelves:
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Hertzog, Ellis S.: Dewatering and drying of coal (United States Dept. of the Interior, Bureau of Mines, 1938), also by James R. Cudworth and United States Bureau of Mines (page images at HathiTrust)- Hertzog, Ellis S.: Friability, grindability, chemical analyses, and high- and low-temperature carbonization assays of Alabama coals (U.S. Dept. of the Interior, Bureau of Mines, 1940), also by W. H. Ode, W. A. Selvig, and James Rowland Cudworth (page images at HathiTrust)
- Hertzog, Ellis S.: Friability of Alabama coals (United States Bureau of Mines, 1938), also by James R. Cudworth (page images at HathiTrust)
- Hertzog, Ellis S.: Grindability of Alabama coals (U.S. Dept. of the Interior, Bureau of Mines, 1938), also by James R. Cudworth (page images at HathiTrust)
- Hertzog, Ellis S.: A test to determine the lime abstraction of iron ores (U.S. Dept. of the Interior, Bureau of Mines, 1946) (page images at HathiTrust)
Find more by Ellis S. Hertzog at your library, or elsewhere.