VOLUME X. 
MAY, 
1910. 
NUMBER 7 
THE 
OHIO NATURALIST 
A Journal Devoted more 
Especially to the Natural 
History qf Ohio. 
OFFICIAL ORGAN qf THE BIOLOGICAL CLUB 
«f OHIO STATE UNIVERSITY, mi j THE 
OHIO ACADEMY qf SCIENCE. 
Ohio State University, Columbus. 
Annual Subscription Price, 91.00. 
Sinfle Number 15 cent*. 
Entered at the Port-Office at Cotambnr, Ohio, at Sccoad-claat Mattel. 
