Signedon foot, objectives, and magnification table: Bausch & Lomb Optical Co. / ROCHESTER, N.Y.
on foot: F. H. THOMAS CO. / Boston
on nosepiece: BAUSCH & LOMB OPT. CO. / ROCHESTER, N.Y.
on canisters: BAUSCH & LOMB / OPT. CO.
on canisters and eyepieces: B-L / Z / S [in divided prism trademark]
Inscribedon heel and lens card: 63467
on fine focus screw: PAT. FEB. 16. 1897.
Historical AttributesThis microscope was owned by Dr. James Bourne Ayer (1882-1963) who held a Harvard A.B., 1903 and M. D., 1907. He started as an Instructor in Neurology, 1915-1923 and rose through the ranks of to become James Jackson Putnam Professor of Neurology at Harvard Medical School and Chief of Neurology at Massachusetts General Hospital.
Primary SourcesBausch & Lomb Optical Co., Microscopes and Accessories: Catalogue A (Rochester, NY: Bausch & Lomb Optical Co., 1900), 35.
ProvenanceDr. James Bourne Ayer, Harvard Medical School; gift by Poland B. Hammond.