American Philosophical Society 



General Meeting — April 21-23, 19 10 



The General Meeting of 19 lo will be held on Ap-ril 21st 

 to 231-d, beginning at 2 p. m. on Thursday, April 21st. 



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 19, 1910, 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 



presented. 



I. MINIS HAYS 



ARTHUR W. GOODSPEED 



JAMES W. HOLLAND 



AMOS P. BROWN 



Secretaries. 



Members who have not as yet sent their photographs to the Society will 

 confer a favor by 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. 



