

CONTENTS. 



I. A list of the Hemiptera of Buffalo and Vicinity, by Edward 

 P. Van Duzee. 



II. 



III. 



Descriptions of some new North American Homopterous 

 Insects, by E. P. Van Duzer, Buffalo, N. Y. 



The Pendulum and its Laws of Oscillation. Read before 

 the Buffalo Society of Natural Sciences. Feb. 12th, by 

 Austin M. Edwards 



