PROCEEDINGS 



OF THE 



Ohio State Academy of Science. 



Vol. IV, Part 4. 



Ecological Study of Brush Lake, 



JOHN H. SCHAFFNER, OTTO E. JENNINGS and 

 FREDRICK J. TYLER, 



SPECIAL PAPERS, No. 10. 



PUBLICATION COMMITTEE: 

 JOHN H. SCHAFFNER, JAMES S. HINE, GERARD FOWKE. 



Columbus, Ohio, December 1, 1904. 



columbus, ohio : 



Spahr a Glenn, Printers. 



1904. 



