A journal devoted more especially to the 
natural history of Ohio. The official organ 
of The Biological, Club of the Ohio 
State University. Published monthly 
during the academic year, from Novem- 
ber to June (8 numbers). Price 50 cents per year, payable in advance. 
To foreign countries, 75 cents. Single copies 10 cents. 
John H. Schaffner, Editor. 
F. J. Tyler, Subscriptions. 
R. F. Griggs, Advertising Agent. 
Address 
THE O. S. U. NATURALIST, Ohio State University, 
COLUMBUS, OHIO. 
THE O. S. U. 
NATURALIST 
CONTENTS 
Announcement 1 
An Ohio Station for Ampelopsis Cordata 2 
W. A. Kellerman 
The Baum Prehistoric Village site 4 
W. C. Mills 
A Foliicolous Form of Sorghum Smut and Notes on Infection 
Experiments 9 
W. A. Kellerman 
A List of Hemiptera Collected in the Vicinity of Bellaire, 0 11 
Herbert Osborn 
Additions and Corrections to the “Odonata of Ohio.” 13 
James S. Hine 
Dragonflies Taken in a Week 13 
R. C. Osbnrn and J. S. Hine 
Additions to the Ohio Flora 15 
Collecting and Preserving Microscopic Plants 16 
