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

    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

    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
    • Jack B. Graham

    Volume 38 • 1942 • Annual Reports, 1940 and 1941, with Accompanying Papers • 1-262

    Ceramic Shales and Clays of Iowa

    • Charles S. Gwynne

    Volume 38 • 1942 • Annual Reports, 1940 and 1941, with Accompanying Papers • 263-378

    Cambrian Strata of Northeastern Iowa

    • Walter C. Schuldt

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

    Mineral Production in Iowa in 1939 and 1940

    • H. Garland Hershey

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