Books by Spencer Lens Company:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Spencer Lens Company: I saw them making microscopes (Spencer Lens Co., 1937), also by J. Thomas (page images at HathiTrust)- Spencer Lens Company: Spencer. (Spencer Lens Co., 1930) (page images at HathiTrust)
- Spencer Lens Company: Spencer microscopes and accessories : microtomes, bacteriological apparatus and laboratory supplies (The Company, 1914) (page images at HathiTrust)
- Spencer Lens Company: The use of the Spencer spectrometer (Spencer Lens Co., 1938), also by Roger S. Estey (page images at HathiTrust)
Find more by Spencer Lens Company at your library, or elsewhere.