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American Philosophical Society 



1 General Meeting — April 17-19, 19 13 



"iT'he Gdn^ral Meeting of 1 913 will be held on April 17th, 

 1 8th and 19th, beginning at 2 p. m. on Thursday, April 17th. 



Members desiring to present papers are requested to send 

 to the Secretaries, at as early a date as practicable, and not later 

 than April 7, 19 13, the titles of these papers, so that they may 

 be announced in the final programme which will be issued 

 immediately thereafter, and which will give in detail the arrange- 

 ments for the meeting. 



Papers in any department of science come within the 

 scope of the Society, which, as its name indicates, embraces the 

 whole field of useful knowledge. 



The Publication Committee, under the rules of the Society, 

 will arraUj^e for the immediate pviblication of the papers pre. 

 seated. 



I. MINIS HAYS 



ARTHUR W. GOODSPEED 



AMOS P. BROWN 



HARRY F. KELLER 



Secretaries. 



Members who have not as vet sent their photographs to the Society >vill 

 confer a favor bj so doing; cabinet size preferred. 



It is requested that all correspondence be addressed 

 To THE Secretaries of the 



AMERICAN PHILOSOPHICAL SOCIETY 

 104 South Fifth Street 



Philadelphia, U S. A. 



