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

Cambrian Strata of Northeastern Iowa

Walter C. Schuldt

1943-01-01 Volume 38 • 1942 • Annual Reports, 1940 and 1941, with Accompanying Papers • 379-422

Mineral Production in Iowa in 1939 and 1940

H. Garland Hershey

1943-01-01 Volume 38 • 1942 • Annual Reports, 1940 and 1941, with Accompanying Papers • 423-456