MARK ANNIVERSARY VOLUME 



TO 



jBfcwarfc Xaurens flDarft 



Hersey 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 bis former Students 

 1877-1902 



NEW YORK, 



HENRY HOLT AND COMPANY 

 1903 



