h i g 



THE LIFE OF INLAND 



WAT 



An elementary text book of fresh-water biology 

 for American students 



BY 

 JAMES G. NEEDHAM 



Professor of Limnology in Cornell University 

 and 



J. T. LLOYD 



Instructor in Limnology in Cornell University 



1916 



THE COMSTOCK PUBLISHING COMPANY 

 ITHACA, NEW YORK 



