"How to use and care for the microscope."; "Spencer Lens Company (Buffalo, N.Y.)"; "Microscopes--Handbooks, manuals, etc."; "Spencer Lens Company (Buffalo, N.Y.)"; "[1916?]"; "

Pamphlet. Available in electronic format on the HathiTrust Digital Library website.

"; ""; "P12925"; "pec"; "Microscopes--Handbooks, manuals, etc."; "14256"; .