572 
PROCEEDINGS OF THE ACADEMY OF 
[Dec., 
the family Oleacinidce. Studies have also been made of the snails 
collected in Arizona in 1906, an account of which will shortly be ready 
for publication. 
Mr. E. G. Yanatta has given careful and efficient assistance in the 
work of the department. 
H. A. Pilsbry, 
Special Curator. 
REPORTS OF THE SECTIONS. 
The Biological and Microscopical Section. 
Nine stated and several informal meetings have been held during the 
year with the usual attendance. 
The following communications were made: 
On Filaria sanguinis hominis, by Dr. T. S. Stewart. 
On Amphigyra alabaminensis , and on an apparatus for showing 
polarized light, by Mr. F. J. Keeley. 
On motion of diatoms, by Mr. T. Chalkley Palmer. 
A paper “On Consciousness of Micro-Organisms,” by Mr. John G. 
Rothermel, was presented to a large audience by request in the Library 
Hall. 
Dr. Sylvester J. Deehan, by invitation, read a paper “On the House 
Fly and Its Relation to Public Health.” 
Shorter communications on various subjects were made by Messrs. 
J. A. Shulze, William B. Davis, Silas L. Schumo, Hugo Bilgram, Dr. 
J. C. Morris and C. S. Bojmr. 
The semi-centennial anniversary of the founding of the Section will 
occur on March 30, 1908. Of the twenty-seven original members but 
few are now living; it is hoped, however, that the occasion may be the 
means of some commemoration of the work of the Section. 
The following officers were elected for the year 1908: 
Director, 
Vice-Director , 
Recorder, 
Corresponding Secretary, 
Treasurer, 
Conservator, . 
J. Cheston Morris, M.D. 
T. Chalkley Palmer. 
Charles S. Boyer. 
Silas L. Schumo. 
Thomas S. Stewart, M.D. 
F. J. Keeley. 
Charles S. Boyer, 
Recorder. 
