XXXII PHILOSOPHICAL SOCIETY OF WASHINGTON. 
ANNUAL REPORT OF THE SECRETARIES. 
Washington, D. C., December 21, 1887. 
To the Philosophical Society of Washington: 
We have the honor to present the following statistical data for 
1887: 
The last Annual Report brought the record of membership 
down to December 18, 1886. The number of active mem¬ 
bers was then ......... 183 
This number has been increased by the addition of 14 new 
members, by the return of 1 absent member, and by the 
reinstatement of 2 members previously dropped. It has 
been diminished by the departure of 7 members, by the 
resignation of 1, and by the death of 3 members. The net 
increase of active members has thus been ... 6 
And the active membership is now.189 
The roll of new members is : 
W. H. Babcock. 
Everett Haydek. 
J. H. Holmes. 
Harry King. 
F. J. Knight. 
F. H. Knowlton. 
S. P. Langley. 
F. A. Seely. 
H. L. Smyth. 
J. W. Spencer. 
T. W. Symons. 
H. L. Whiting. 
H. C. Wilson. 
H. V. WORDEMAN. 
The roll of deceased members is: 
S. F. Baird. W. B. Hazen. E. P. Lull. 
There have been 16 meetings, of which 14 have been for the pre¬ 
sentation and discussion of papers, 1 for the President’s Annual 
Address, and 1 for the Annual Reports and election of officers; 
the average attendance (at the 14 meetings for presentation of 
papers), has been 49. There have been 12 meetings of the Mathe¬ 
matical Section ; average attendance 17. 
The first 5 meetings of the year were held in the library of the 
Surgeon General’s Office, at which meetings the average attendance 
was 40; the 9 remaining meetings were held in the Assembly Hall 
of the Cosmos Club, at which the average attendance was 54. 
In the general meetings 37 communications have been presented; 
in the Mathematical Section 20. Altogether 57 communications 
