Books by Donald Henry Zellers:
Books in the extended shelves:
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Zellers, Donald Henry, 1904-: Factors retarding transmission of radio signals underground, and some further experiments and conclusions (U.S. Dept. of the Interior, Bureau of Mines, 1924), also by Jay John Jakosky and United States Bureau of Mines (page images at HathiTrust)- Zellers, Donald Henry, 1904-: How leakage of current from an electric shot-firing circuit causes misfires (U.S. Bureau of Mines, 1930), also by L. C. Ilsley, A. B. Hooker, and United States Bureau of Mines (page images at HathiTrust)
- Zellers, Donald Henry, 1904-: Line radio and the effects of metallic conductors on underground communication (U.S. Dept. of the Interior, Bureau of Mines, 1925), also by Jay John Jakosky and United States Bureau of Mines (page images at HathiTrust)
- Zellers, Donald Henry, 1904-: Maintaining the permissibility of electric cap lamps (U.S. Dept. of the Interior, Bureau of Mines, 1935), also by A. B. Hooker (page images at HathiTrust)
Find more by Donald Henry Zellers at your library, or elsewhere.