Page:Principles of Microscope.djvu/10

This page has been proofread, but needs to be validated.

BUTLER & TANNER.
THE SELWOOD PRINTING WORKS,
FROME, AND LONDON.

Retrieved from "https://en.wikisource.org/w/index.php?title=Page:Principles_of_Microscope.djvu/10&oldid=8117781"