XY 



COLUMBIA UNIVERSITY BIOIOGICAL SERIES. IV. 



THE CELL 



IN 



Development and Inheritance 



BY 



EDMUND B. WILSON, Ph.D. 



PROFP;SSOR OF ZOOLOGY, COLUMBIA UNIVERSITY 



SECOND EDITION 

 REVISED AND ENLARGED 



"Natura nusquam magis est tuta quam in minimis " 



PLINY 



THE MACMILLAN COMPANY 



LONDON: MACMILLAN & CO., Ltd. 

 1906 



AH rights reserved 



