THE O. 5, U, 

 NATURALIST 



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. Schaffneb, Editor. 

 F. J. Tyler, Subscriptions. 



R. F. Griggs, Advertising Agent. 

 Address 



THE O. S. U. NATURALIST, Ohio State University, 



COLUMBUS, OHIO. 



CONTENTS 



PAGE 



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, O II 



Herbert Osborn 



Additions and Corrections to the "Odonata of Ohio." 13 



James S. Hine 



Dragonflies Taken in a Week . . . 13 



R. C. Osburn and J. S. Hine 



Additions to the Ohio Flora 15 



Collecting and Preserving Microscopic Plants 16 



