MARK ANNIVERSARY VOLUME 



TO 

 1auren0 



Mersey Professor of Anatomy 



and 

 Director of the Zoological Laboratory at Harvard University 



in Celebration of 



Twenty-five Years oj Successful Work for the Advancement of Zoology 



from Ms former Students 

 1877-1902 



NEW YORK , 



HENRY HOLT AND COMPANY 

 1903 



