Signedunsigned
Historical AttributesThis pocket botanical and universal microscope was acquired in 1789 by Dr. John Jeffries (Harvard AB 1763), a loyalist who fled to England during the American Revolution.
Dr. Ernst noted that "It has an attachment with a Lieberkühn's mirror for using a drop of water as a lens."
ProvenanceDr. John Jeffries, purchased in London, 1789; Jeffries family; Dr. B. Joy Jeffries; gift to Ernst-Lewis Collection of Microscopes (inv. no. 1), Harvard Medical School, 1898.
Published References"Catalog of the Exhibition, Benjamin Franklin: A How-To Guide," Harvard Library Bulletin, 17 (spring-summer 2006): 96-97.