THE 



MICROSCOPE. 



BEING THE ABTICLE CONTKIBUTED BY 



ANDREW ROSS 



TO THE " PENNY CYCLOPEDIA," PUBLISHED BY THE SOCIETY 

 FOB THE DIFFUSION OF USEFUL KNOWLEDGE. 



'_ 



'7 T 



FULLY I LLUSTRATED. 



NEW YOKE: 

 TPIE INDUSTBIAL PUBLICATION COMPANY. 



1877. 



