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 
