UNIVERSITY OF CALIFORNIA PUBLICATIONS 



IN 



ZOOLOGY 



Vol. 19, No. 11, pp. 335-388, plates 19-25, 1 figure in text May 15, 1920 



THE LIFE CYCLE OF ECHINOSTOMA 

 REVOLUTUM (FROELICH) 



JOHN C. JOHNSON 



UNIVERSITY OF CALIFORNIA PRESS 

 BERKELEY 



