American Philosophical Society 



General Meeting — April 20-22, 191 1 



The General Meeting of 191 1 will be held on April 20th 

 to 32nd, beginning at 2 p. m. on Thursday, April 20th. 



Members desiring to present papers, either for themselves 

 or others, are requested to send to the Secretaries, at as early a 

 date as practicable, and not later than March 18, 1911, the titles 

 of these papers, so that they may be announced on the programme 

 which will be issued immediately thereafter, and which will give 

 in detail the arrangements 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 arrange for the immediate publication of the papers pre- 

 sented. 



I, MINIS HAYS 

 ARTHUR W. GOODSPEED 

 JAMES W. HOLLAND 

 AMOS P. BROWN 



Secretaries. 



Members who hiv^. not as yet sent their photographs to the Society "win 

 confer a favor by so doing; cabinet size preferred. 



It is requested that all correspondence by addressed 



To THE Secretaries of the 



AMERICAN PHILOSOPHICAL SOCIETY 

 104 South Fifth Street 



Philadelphia, U. S. A. 



