Article
Authors: Samuel Calvin , A. G. Leonard , William Harmon Norton , J. B. Weems
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How to Cite: Calvin, S. , Leonard, A. G. , Norton, W. H. & Weems, J. B. (1902) “Administrative Reports”, Iowa Geological Survey Annual Report. 12(1). doi: https://doi.org/10.17077/2160-5270.1269