THE UNIVERSITY OF CHICAGO 



FOUNDED BY JOHN D. EOCKEFELLEE 



INVESTIGATIONS EEPEESENTING 

 THE DEPAETMENTS 



ZOOLOGY ANATOMY PHYSIOLOGY NEUROLOGY 

 EOTANY PATHOLOGY BACTERIOLOGY 



THE DECENNIAL PUBLICATIONS 

 FIRST SERIES VOLUME X 



CHICAGO 



THE UNIVERSITY OF CHICAGO PRESS 



1903 



