The chart of knowledge. Compiled and copyrighted, 1936 by Prof. Geo. W. Muhleman, Hamline university. Rockford, Illinois. Published by Eclipse Fuel Engineering Company [1936]. This item is included in this Collection with permission from Thelma Boeder, Archivist, Hamline University, Hamline University, 1536 Hewitt Avenue, St. Paul, MN, 55104-1284 USA