Jllemotrs from tl)c Biological CaborntorQ 



OF THE 



JOHNS HOPKINS UNIVERSITY 

 IV, 4 



WILLIAM K. BROOKS, EDITOR 



PHYSIOLOGY AND HISTOLOGY 



OF 



THE CUBOMEDUS^: 



INCLUDING 



DR. F. S. CoNANT's NOTES ON THE PHYSIOLOGY 



A DISSERTATION PRESENTED TO THE BOARD OF UNIVERSITY STUDIES OF THE JOHNS 

 HOPKINS UNIVERSITY FOR THE DEGREE OF DOCTOR OF PHILOSOPHY 



BY 



E. W. BERGER 



BALTIMORE 



THE JOHNS HOPKINS PRESS 

 1900 



