VOLUME XIII. 
APRIL, 
1913. 
NUMBER 6, 
7-'- 
THE 
OHIO NATURALIST 
A Journal Devoted more 
Especially to the Natural 
History of Ohio. 
OFFICIAL ORGAN of THE BIOLOGICAL CLUB 
qf ihi OHIO STATE UNIVERSITY. <nt3 qf THE 
OHIO ACADEMY qf SCIENCE. 
Ohio State University, Columbus. 
Annual Subscription Price, $1.00 
Single Number 15 cents. 
Entered at the Post-Offifee at Columbs, Ohio, as Second-Class Matter. 
