OHIO BIOLOGICAL SURVEY 
Herbert Osborn, Director 
OHIO STATE UNIVERSITY IN CO-OPERATION WITH 
OTHER OHO COLLEGES AND UNIVERSITIES 
Administrative Board consisting of Representatives from co-operat- 
ing institutions. 
E. L. Fullmer, 
Baldwin Wallace University, 
Berea, O. 
E. R. Gregory, 
University of Akron, 
Akron, O. 
M. E. Stickney, 
Denison University, 
Granville, O. 
L. B. Walton, 
Kenyon College, 
Gambier, O. 
Miss M. Getman, 
Lake Erie College, 
Painesville, O. 
Bruce Fink, 
Miami University, 
Oxford, O. 
F. O. Grover, 
Oberlin College, 
Oberlin, O. 
E. L. Rice, 
Ohio Wesleyan University, 
Delaware, O. 
H. M. Benedict, 
University of Cincinnati, 
Cincinnati, O. 
F. H. Herrick, 
Western Reserve University, 
Cleveland, O. 
C. G. Shatzer, 
Wittenberg College, 
Springfield, O. 
ANNOUNCEMENT 
The Bulletins of the Ohio Biological Survey will be issued as work 
on any special subject is completed, and will form volumes of about 
500 pages each. 
They will be sent to co-operating institutions and individuals, 
libraries and colleges in Ohio and to such surveys, societies and other 
organizations as may offer suitable exchange material. 
Additional copies of each Bulletin and of completed volumes will be 
sold at such price as may cover the cost of publication. 
Special rates on quantities to schools for classes. 
Subscription for entire volumes.$2.00 
Price of this number.50 
All orders should be accompanied by remittance made payable to 
Ohio Biological Survey and sent to the Director. 
Correspondence concerning the Survey, applications for exchanges 
and purchase of copies of Bulletins should be addressed to the Director— 
Professor Herbert Osborn, Columbus, Ohio. 
