NEW CATALOG" MICROTOMES 



I 



Containing full descriptions 

 and Photographic Illustrations 

 of our entire line of remodeled 

 microtomes and accessories, 

 including several 



NEW MICROTOMES 



This new series is the most 

 complete and practical ever 

 listed, and every user of a 

 Microtome should have a 

 copy of the book for refer- 

 ence purposes, if for no 

 other reason. Mailed free. 



Bausch & Lomb Optical Co. 



ROCHESTER, N. Y. Chicago 



BOOKS ON SCIENCE 



Bergen's Foundations of Botany $1.50 



Davis* Physical Geography 125 



Moore's Laboratory Directions for Beginners in Bacteriology 1.00 



Blaisdell's Practical Physiology 110 



Brown's Physiology for the Laboratory 75 



Ward's Exercises in Meteorology 112 



Davis' Elementary Meteorology 2 50 



Williams' Elements of Chemistry 110 



Hastings and Beach's General Physics 2 -75 



Wentworth and Hill's Physics J-JJ 



Gage's Principles of Physics 130 



Stone's Experimental Physics * °? 



Young's General Astronomy 2 75 



Byrd's Laboratory Manual in Astronomy *- 2 5 



Upton's Star Atlas 2 00 



GINN <S COMPANY PUBLISHERS 



