1915 ] NATURAL SCIENCES OF PHILADELPHIA. 193 



April 20. 

 Mr. Charles Morris in the Chair. 



One hundred and thirty persons present. 



The Council reported that Dr. Spencer Trotter had l^een ap- 

 pointed a member of the Library Committee to fill the vacancy 

 caused by the death of Dr. Thomas Biddle. 



The Publication Committee reported the reception of papers 

 under the following titles: 



"A further contribution to the knowledge of the Orthoptera of 

 Argentina," by James A. G. Rehn (April 1). 



"The earUest Samoan prints," by WiUiam Churchill (April 7). 



Mr. Theodore Justice made a finely illustrated communication 

 on the evolution of the horse. 



The following were ordered to be printed: 



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