

INTRODUCTION TO 



CYTOLOGY 



BY 

 LESTER W. SHARP 



Cornell University 



"The most important discoveries of the laws, methods 

 and progress of nature have nearly always sprung from 

 the examination of the smallest objects which she 

 contains, and from apparently the most insignificant 

 enquiries." — Lamarck, Philosophie Zoologigue. 



Third Edition 

 Fourth Impression 



McGRAW-HILL BOOK COMPANY, Inc. 



NEW YORK AND LONDON 

 1934 



