566 
PHILOSOPHICAL SOCIETY OF WASHINGTON. 
366th Meeting. February 28, 1891. 
President Mendenhall in the chair. 
Fifty-five members present. 
The Chair announced the death of Charles Christopher 
Parry, which occurred at his residence, in Davenport, Iowa, 
February 20, 1890. 
Mr. Edward Goodfellow read a biographical notice of the 
late Capt. C. 0. Boutelle. 
Published in this volume, pp. 466-471. 
Vice-President Gilbert was called to the chair and Mr. Men¬ 
denhall exhibited and described a new pendulum apparatus. 
Not published. 
Remarks were made by Messrs. Paul, Harkness, Abbe, Baker, 
Langley, Bigelow, Preston, and Mendenhall. 
Mr. A. C. True read a paper On the Status and Tendencies 
of the Agricultural Experiment Stations. 
The substance of this paper is published in the annual reports 
of the Secretary of Agriculture for 1889, pp. 485-544, and 1890, 
pp. 489-555. 
367th Meeting. March 14, 1891. 
President Mendenhall in the chair. 
Forty members present. 
The election and qualification of the following individuals for 
membership in the Society was announced: 
Henry Newlin Stokes, Joseph Kay McCammon,' Rollin 
Arthur Harris. 
Mr. Swan M. Burnett made a communication on A New 
Metric System of Numbering Prisms, and exhibited apparatus 
for applying the system. 
The substance of the paper is published in “ Ophthalmic Re¬ 
view,” London, January, 1891; also in “ Medical News,” Phila¬ 
delphia, May 2, 1891. 
