Photographic Negatives, undated

Contains 19 separate glass plate and film negatives which include laboratory experiments, maps, pictures, and charts of geological features in Ohio.

Lab experiments (2 items), 5x7 negatives

Pictures of individual stones (10 items), 5x7 negatives

Northern Ohio Quarries and Geology (found in box labeled "Dev. Before July 1945): Map: Black River and ridges (townships: Black River, Sheffield, Amherst, Elyria); Map: Ohio, Major prairie areas; Chart: Quarries, lower beds, upper beds; Map: Ohio, outcrop of Berea sandstone; Map: South Amherst quarries; Depth Chart: quarries (2 items); Charts: Norwalk Bog (2 items)