1893.] NATURAL SCIENCES OF PHILADELPHIA. 555 



opportunity to have this large accumulation of material of such in- 

 terest in connection "with the history of the society classified and 

 arranged by him. Although the work has not been entirely com- 

 pleted, the material is now in such order as to be available for con- 

 sultation and reference. The resulting good has already been more 

 than once manifested. 



The Hayden Memorial medal and the balance of the interest aris- 

 ing from the endowment fund were this year voted to Professor 

 Thomas Henry Huxley, LL. D. , F. R. S. to whom they have been 

 forwarded with an expression of the Academy's hearty endorsement 

 of the action of its awarding Committee. This is the fourth award 

 of the Hayden memorial, the first being to Prof. James Hall of 

 Albany in 1890, the second to Prof. Edw. D. Cope of Philadelphia, 

 1891, and the third to Prof. Eduard Suess of Vienna in 1892. 



The Delaware Valley Ornithological Club and the Geographical 

 Club have held their meetings throughout the year in the Academy. 



These facts and figures it is believed prove without comment that 

 the Academic year just closed has been prosperous if uneventful. 



Edw. J. Nolan, 



Recording Secretary. 



REPORT OF THE CORRESPONDING SECRETARY. 



The Corresponding Secretary respectfully reports that during the 

 year commencing December 1st, 1892, he has received from ninety- 

 two societies, museums, etc. , one hundred and fifty-four notices of 

 the receipt of the publications of the Academy, and from thirty- nine 

 societies and editors, forty-eight notices of the forwarding of their own 

 publications to the Academy together with fifteen applications to ex- 

 change publications for reports and asking for missing numbers of the 

 Academy's publications. Twenty letters on various subjects have 

 been received and thirteen written. Fifteen circulars and invitations 

 to the Academy to participate in congresses, meetings etc. , have been 

 received and answered. Two notices of deaths have been also re- 

 ceived. 



During the year seventeen correspondents have been elected and 

 notices to that effect have been sent. The deaths of nine correspond- 

 ents have been reported. Forty-seven certificates have been sent 

 to members and twelve to correspondents. 



