1897.] natural sciences of philadelphia. 331 



August 17. 

 Mr. Benjamin Smith Lyman in the Chair. 



A paper entitled "The North American Species of Argia (Order 

 Odonata)," by Philip P. Calvert was presented for publication. 



The death of J. Sergeant Price, a member, on the 16th inst. was 

 announced. 



August 24. 

 Mr. Benjamin Smith Lyman in the Chair. 



Eight persons present. 



August 31. 

 Mr. Uselma C. Smith in the Chair. 



Eleven persons present. 



A paper entitled " Description of Two New Species of Cerion " 

 by H. A. Pilsbry and E. G. Vanatta was presented for publication. 



