1910.] 
NATURAL SCIENCES OF PHILADELPHIA. 
675 
expressive of the Academy’s interest and appreciation. Delegates, 
most of whom were in attendance at the meetings, were appointed 
as follows: To the Third International Congress of Botany, Prof. 
J. C. Arthur; to the Eleventh International Geological Congress, 
Dr. Richard A. F. Penrose and Dr. Edgar T. Wherry; to the Eighth In¬ 
ternational Zoological Congress, Prof. E. G. Conklin and Prof. Ludwig 
v. Graff, and to the First International Congress of Entomology, Dr. 
Henry Skinner. 
A rather larger number than usual of letters requesting information 
or assistance were either answered by the Corresponding Secretary 
or referred to other officers of the Academy. 
A tabulated statement of the correspondence for the year follows: 
Communications Received. 
Acknowledging receipt of the Academy’s publications. 223 
Transmitting publications to the Academy. 56 
Requesting exchanges or the supply of deficiencies.. ... 11 
Invitations to learned gatherings. 14 
Notices of deaths of scientific men. 6 
Circulars concerning the administration of scientific institutions, etc. 19 
Biographies and photographs of correspondents. 3 
Miscellaneous letters. 92 
Total received. 424 
Communications Forwarded. 
Acknowledging gifts to the Library. 1,084 
Acknowledging gifts to the Museum. . 59 
Acknowledging photographs and biographies. 3 
Requesting the supply of deficiencies in periodicals. . 67 
Letters of sympathy and congratulation, etc. . 4 
Miscellaneous letters. 89 
Diplomas and notices of election of correspondents and delegates. 6 
Annual Reports and other publications sent to correspondents. 424 
Circular letters. 91 
Total forwarded.1,827 
Respectful^ submitted, 
J. Percy Moore, 
Corresponding Secretary. 
