The Online Books Page

Books by Wilbur A. Haley:

Books in the extended shelves:

• Haley, Wilbur A.: Modified longwall mining with a German coal planer (plow) in the Pocohontas No. 4 coal bed, Helen, W. Va. (U.S. Dept. of the Interior, Bureau of Mines, 1952), also by Louis A. Turnbull and James J. Dowd (page images at HathiTrust)
• Haley, Wilbur A.: Modified longwall mining with a German coal planer. Progress report 2, Completion of mining in three adjacent panels in the Pocahontas no. 4 bed, Helen, W. Va. (U.S. Dept. of the Interior, Bureau of Mines, 1954), also by H. A. Quenon and United States Bureau of Mines (page images at HathiTrust)
• Haley, Wilbur A.: Modified longwall mining with German coal planers : summary of operations at five coal mines (U.S. Dept. of the Interior, Bureau of Mines, 1957), also by James J. Dowd (page images at HathiTrust)
• Haley, Wilbur A.: The use of augers in surface mining of bituminous coal (U.S. Dept. of the Interior, Bureau of Mines, 1957), also by James J. Dowd (page images at HathiTrust)

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