<span>Three 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 </span><span>1869. Notebooks from classes in chemistry, machine drawing, and mining operationsCharles F. Brush, Sr., PapersSeries 8: Other Papers (1842-1960)Subseries 4: Miscellaneous (1842-1960)Box 29Folder 5</span>