Proceedings of the Institute on Lake Superior Geology. University of Minnesota, Minneapolis, Minnesota. April 13-14, 1959.

Proceedings of the Institute on Lake Superior Geology. University of Minnnesota, Duluth, Minnesota. April 21-22, 1958.

Institute on Lake Superior Geology: Geological Exploration. Michigan Institute of Mining and Technology, Houghton, Michigan, May 11-12, 1956.

Proceedings of the Institute on Lake Superior Geology, University of Minnesota, April 1-2 1955.