THE 
Ohio Naturalist 
Volume II. 
Number 7. 
MAY, 1902. 
Annual Subscription, 50 cts. 
Single Number, 10 cts. 
[ i nmu i iiim ijiHimmiumim iimiiiiiiiiiiiiim iiii iiiiiiimniiiiiimiiiiiiii iiin niu; 
The Best of Everything Laboratorial.” 
Entered at the Post Office at Columbus, Ohio, as second class matter. 
