558 
PHILOSOPHICAL SOCIETY OF WASHINGTON. 
The roll of the deceased members is : 
J. H. C. Coffin, one of the founders of the Society, died January 
8, 1890. C. O. Boutelle died June 22, 1890. 
The Society has held 17 meetings—16 for the presentation of 
papers and one for the annual reports and election of officers. 
All the meetings were held in the assembly hall of the Cosmos 
Club. 
The average attendance at the meetings for the reading of 
papers has been forty-one and one-half, an increase of one and 
one-half upon the average attendance of last year. 
Thirty-four communications have been presented to the So¬ 
ciety by 28 members and 4 guests. 
Two members have presented two papers each. 
Sixty-seven remarks were made by 39 members. 
In all, 52 members, which is over 25 per cent, of the active 
membership of the Society, have taken part in its proceedings. 
It has been the custom of the Society to set apart the meeting 
next preceding the annual meeting for the delivery of the Presi¬ 
dent’s annual address, but the President found it to be impossible 
for him, on account of his other official duties, to deliver the 
address at the appointed time. 
The address was postponed and a program for the meeting 
furnished by the Committee on Communications. 
The Mathematical Section has held 7 meetings, with an average 
attendance of 11. Nine communications were presented to the 
section and an aggregate of 12 members participated in its pro¬ 
ceedings. 
The General Committee has held 17 regular meetings and one 
special meeting, with an average attendance of 13. 
The least number at any meeting was 11 and the greatest 16. 
Last year 38 communications were presented to the Society. 
Of these, 9, including the annual address of the President, have 
been published by the Society. During the year just closed, as 
already stated, 34 communications were presented, and of these 
only 3 have been offered to the Society for publication; 2 have 
already been published and 1 is in course of publication. 
It should be noted, however, that the annual address of the 
President has not yet been communicated, and that the two 
papers published this year are above the average length. The 9 
