VOLUME XII. 
MAY, 
1912. 
NUMBER 7 
THE 
OHIO NATURALIST 
A Journal Devoted more 
Especially to the Natural 
History of Ohio. 
OFFICIAL ORGAN THE BIOLOGICAL CLUB 
Cf rtf OHIO STATE UNIVERSITY, mi2 THE 
OHIO ACADEMY SCIENCE. 
Ohio State University, Columbus. 
Annual Subscription Price, $1.00 
Single Number 15 cents. 
Entered Rt the Post-Offiiee at Columbs, Ohio, as Second-Class Matter. 
