234 JOURNAL OF THE WASHINGTON ACADEMY OF SCIENCES VOL. 13, No. 11 
PROCEEDINGS OF THE ACADEMY AND AFFILIATED 
SOCIETIES 
BIOLOGICAL SOCIETY OF WASHINGTON 
645TH MEETING 
The 645th regular meeting was held in the lecture room of the Cosmos 
Club Jan. 6, 1923, at 8.05 p.m., with President Hircucocx in the chair 
and 75 persons present. 
The report of the treasurer, F. C. Lincon, was read and accepted. It 
showed a balance of $5.02 in the general fund and $840 in the publication 
fund. 
Dr. A. Wetmore, for the auditing committee, reported that the books 
of the treasurer had been audited and found correct. His report was ac- 
cepted. 
The President announced the membership of the Committee on Com- 
munications as follows: E. A. GotpmMan, Chairman, C. E. CHAMBLIss, 
H. E. Ewine, W. R. Maxon, H. C. Oprrnouser, 8S. A. Ronwer. He also 
announced the membership of the Committee on Zoological Nomenclature 
as follows: G. 8S. Miuer, Jr., Chairman, P. Bartscu, 8. A. RonweEr. 
Short notes—Major E. A. GoLpMAN mentioned the symposium on geo- 
graphical distribution at the recent A. A. A.S. meeting in Cambridge, referring 
especially to a paper by C. T. Bruxs on Peripatus and its allies in the southern 
hemisphere. 
The regular program was as follows: 
EK. J. Rernuarp: Notes on the life history and habits of the solitary wasp, 
Philanthus gibbosus (illustrated by lantern slides). The nesting and other 
habits of this wasp were described and illustrated by colored slides. The 
paper will appear in full in the Smithsonian Report. 
VERNON BatLey: Beaver habits and beaver farming (illustrated by lantern 
slides). The habits of beavers were discussed on the basis of the speaker’s 
experience in various parts of the country, and illustrated by colored slides. 
The duration of beaver dams after abandonment, sometimes reaching a 
century or more, was emphasized. The importance of beaver farming to 
supply the demand for furs was also considered. 
S. F. Buaxn, Recording Secretary. 
646TH MEETING 
The 646th regular meeting was held in the lecture room of the Cosmos 
Club, Jan. 20, 1923, at 8:05 p.m., with President Hrrcucock in the chair and 
83 persons present. 
Dr. ArRANIO DO AMARAL, of the Museum of Comparative Zoology, Cam- 
bridge, Mass., was elected to membership. 
The President announced an invitation extended to the Society by the 
Regents and Secretary of the Smithsonian Institution to a meeting in Com- 
memoration of the centenary of the birth of Spencer Fullerton Baird, to be 
held in the auditorium of the National Museum, Saturday evening, February 
3, the acceptance of which was voted. 
Dr. L. O. Howarp described an interesting new case of phoresie in the 
Belgian Congo, between a proctotrypid parasite and a Coreid bug. The 
female parent is carried about on the head of the female bug and when the 
latter deposits her eggs, the parasite instantly places her egg in the egg of 
