Howel Williams (October 12, 1898 – January 12, 1980) was an American geologist and volcanologist. (From Wikipedia)
More about Howel Williams:Books by Howel Williams:
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Williams, Howel, 1898-1980: The Geology of Crater Lake National Park, Oregon; With a Reconnaissance of the Cascade Range Southward to Mount Shasta (Carnegie Institution of Washington publication #540; 1942) (page images at HathiTrust)
Additional books by Howel Williams in the extended shelves:
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Williams, Howel, 1898-1980: The ancient volcanoes of Oregon. (Oregon State System of Higher Education, 1948), also by Oregon State Board of Higher Education (page images at HathiTrust)- Williams, Howel, 1898-1980: Geology of the Macdoel quadrangle (State of California, Dept. of Natural Resources, Division of Mines, 1949), also by Peter H. Masson (page images at HathiTrust)
- Williams, Howel, 1898-1980: Volcanic history of the Guatemalan Highlands (University of California Press, 1960) (page images at HathiTrust)
Find more by Howel Williams at your library, or elsewhere.