Abstract Notebooks, 1923-1968, of Reynolds M. Denning, a graduate of the Michigan College of Mining and Technology in Houghton, Michigan. Subsequently Denning became a professor at Michigan Technological University and later the University of Michigan. Field notebooks include undergraduate class work in mines in Ishpeming and Negaunee, Michigan as well as notebooks from his work in Bolivia during World War II and Little Rock, Arkansas. Also includes clippings. The bulk of this collection dates from...