Volume 38 • 1942 • Annual Reports, 1940 and 1941, with Accompanying Papers
Front Matter
Front Matter, Iowa Geological Survey, Volume XXXVIII, Annual Reports, 1940 and 1941, with Accompanying Papers
1943-01-01 Volume 38 • 1942 • Annual Reports, 1940 and 1941, with Accompanying Papers • i-vi
Article
Forty-ninth and Fiftieth Annual Reports of the State Geologist
Arthur C. Trowbridge
1943-01-01 Volume 38 • 1942 • Annual Reports, 1940 and 1941, with Accompanying Papers • vii-xii
The Illinoian and Post-Illinoian Pleistocene Geology of Iowa
George F. Kay and Jack B. Graham
1943-01-01 Volume 38 • 1942 • Annual Reports, 1940 and 1941, with Accompanying Papers • 1-262
Ceramic Shales and Clays of Iowa
Charles S. Gwynne
1943-01-01 Volume 38 • 1942 • Annual Reports, 1940 and 1941, with Accompanying Papers • 263-378