Books by Howard P. Hamlin:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Hamlin, Howard P. (Howard Phillips), 1913-: Examining and testing clay from Hartford County, Conn., for lightweight aggregate use : the Clark Brick Co. deposit at South Windsor (U.S. Dept. of the Interior, Bureau of Mines, 1964), also by W. T. Millar and United States Bureau of Mines (page images at HathiTrust)- Hamlin, Howard P. (Howard Phillips), 1913-: Properties of reconstituted block talc bonded with magnesium oxychloride (U.S. Dept. of the Interior, Bureau of Mines, 1956), also by T. A. Klinefelter and United States Bureau of Mines (page images at HathiTrust)
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