1911.] NATURAL SCIENCES OF PHILADELPHIA. 591 



The General Committee has been divided into sub-committees 

 on Printing and Publications, Meetings and Addresses, Invita- 

 tions, Finance, and Entertainment. In harmony with a prelim- 

 inary report of this committee, the publication of three volumes 

 has been decided upon: A commemorative quarto volume of 

 scientific memoirs, an index to the series of Proceedings and 

 Journals up to and including 1910, and a detailed history of the 

 Academy by the Recording Secretary, of which the chapter con- 

 tributed to the Founders' Week Memorial Volume may be regarded 

 as a prodromus. It has been decided to hold the first session on 

 the meeting night of the Academy, March 19, when historical 

 addresses will probably be delivered; two morning sessions will 

 be devoted to the reading of scientific papers; on the afternoon 

 of the second day a microscopical exhibition will be given and 

 the resources of the Academy demonstrated; on the evening of 

 that day a reception will be tendered to members, guests and 

 friends, and the proceedings will probably end with a banquet on 

 the evening of March 21st, the official birthday of the Academy. 



The preparation of the proposed publications is progressing 

 satisfactorily, and it is hoped that a united effort may be made to 

 secure for the occasion a success commensurate with its importance 

 in the history of the Academy and in its relation to the advance- 

 ment of science in America. 



Edward J. Nolan, 



Recording Secretary. 



REPORT OF THE CORRESPONDING SECRETARY. 



During the year just closed death claimed the following named 

 correspondents: Charles Otis Whitman, Ernest Andre, Thomas 

 Rupert Jones, Samuel H. Scudder, C. M. Scammon, Maskelyne 

 N. Story and Florentino Ameghino. The death of Professor Ralph 

 Tate, in 1901, was also announced. 



The election of six correspondents has been recorded in the current 

 Proceedings. A revised list of correspondents has been prepared 

 for publication by the Assistant Librarian. 



Invitations to participate in the following events of interest to the 

 scientific world were received: The International Hygiene Exhibi- 

 tion in Dresden ; the learned congress in connection with the Millenary 

 Fetes in celebration of the one thousandth anniversary of the freedom 

 of Normandy ; the international programme in honor of the memory of 

 Amedeo Avogadro; the one hundredth anniversary of the founding 



