viii The Biological Society of Washington. 



Barton W. Evermann reported the receipt of a wireless 

 message from Agent Lembkey at the Pribilof Islands stating that 

 the reindeer herds on the islands are in excellent condition at 

 the end of the first year. 



The following communications were presented : 

 ' Notes on the Biology of the Common Termites of the Eastern 

 United States " : Thomas E. Snyder. 



"The Biting Powers of Ants": W. L. McAtee. 



February 8, 1913— 507th Meeting. 



President Nelson in the chair and 57 persons present. 



The evening was devoted to a lecture by Dr. Burt G. Wilder, 

 on " The Brain as a Guide to the Affinities of Vertebrates." 



The communication was discussed by Hugh M. Smith and 

 Theodore Gill. 



February 22, 1913— 508th Meeting. 



President Nelson in the chair and 76 persons present. 

 The program consisted of an illustrated lecture on " Hunting 

 with Rainey in Africa," by Edmund Heller. 



March 8, 1913— 509th Meeting. 



Vice-President Bartsch in the chair and 37 persons present. 



William Palmer exhibited the head and the plaster cast of 

 the head of the small devil ray Mobula olfersi and explained the 

 feeding habits of this species. 



Theodore Gill made some remarks on the history of rays. 



Barton W. Evermann reported that excellent prices had been 

 received for the blue fox skins from the Pribilof Islands sold at 

 Lampson's March sale, in London. 



The following communications were presented: 



" Remains of a Camel found in America north of the Arctic 

 Circle": J. W. Gidley. 



' Remarkable Philippine Mollusks obtained by the U. S, 

 Bureau of Fisheries Expedition ": Paul Bartsch, 



