Three handwritten, unbound notebooks by Charles F. Brush, Sr. from classes Brush took while in attendance at the University of Michigan as a mining en Show moreThree handwritten, unbound notebooks by Charles F. Brush, Sr. from classes Brush took while in attendance at the University of Michigan as a mining engineering major in the years 1867, 1868, and 1869. Notebooks from classes in chemistry, machine drawing, and mining operations Charles F. Brush, Sr., Papers Series 8: Other Papers (1842-1960) Subseries 4: Miscellaneous (1842-1960) Box 29 Folder 5 Show less