Books by C. A. Allen:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Allen, C. A. (Carl Alton), 1883-1923: Analyses of Utah coals (U.S. Dept. of the Interior, Bureau of Mines, 1925), also by Ned H. Snyder, F. D. Osgood, Harry Mac Cooper, Arno Carl Fieldner, Edmund M. Spieker, United States Bureau of Mines, and Utah. Industrial Commission (page images at HathiTrust)- Allen, C. A. (Carl Alton), 1883-1923: Cannel coal in southern Utah (U.S. Dept. of the Interior, Bureau of Mines, 1921) (page images at HathiTrust)
- Allen, C. A. (Carl Alton), 1883-1923: Coal losses in Illinois (Urbana, Ill., 1925), also by United States Bureau of Mines, University of Illinois (Urbana-Champaign campus). Engineering Experiment Station, and Illinois State Geological Survey (page images at HathiTrust)
- Allen, C. A. (Carl Alton), 1883-1923: An extension of the Dewey system of classification as applied to mining ([Golden? Col., 1912) (page images at HathiTrust)
- Allen, C. A. (Carl Alton), 1883-1923: Fighting a mine fire with its own gases (U.S. Dept. of the Interior, Bureau of Mines, 1922), also by A. C. Watts and United States Bureau of Mines (page images at HathiTrust)
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