354 
PHILOSOPHICAL SOCIETY OF WASHINGTON. 
511th Meeting. January 20, 1900. 
President Sternberg in the chair. 
Thirty-one persons present. 
The report of the Auditing Committee was read by Mr. 
Brockett. [See Bulletin, vol. xiii, p. 496.] 
Mr. See presented informally the Results of his researches on 
the orbits of the double stars r Cygni and 95 Ceti. 
Mr. Henry IIyvernat, of the Catholic University, read by 
invitation a paper on Recent explorations in the Lebanon Moun¬ 
tains with special reference to their hydrographic systems, and 
exhibited a number of geological specimens from that region. 
[Published in The Catholic University Bulletin, January, 1901.] 
Mr. Mitchell Carroll, of the Columbian University, read 
by invitation a pap^r on Recent excavations in the Roman Forum, 
accompanying it by many lantern illustrations. [Not published.] 
Remarks on the two papers were made by the President, 
Messrs. Baker and Adler. 
512th Meeting. February 3, 1900. 
President Sternberg in the chair. 
Thirty-five persons present. 
A general informal discussion was had regarding the publica¬ 
tions of the Society. 
Mr. J. G. Hagen read a Report on recent progress in Astro¬ 
physics. [Published in this volume, p. 11.] 
Mr. J. F. Hayeord read a Report on recent progress in 
Geodesy. [Published in this volume, p. 1.] 
513th Meeting. February 17, 1900. 
Past President Baker in the chair. 
Ten persons present. 
Mr. Wead spoke informally on The elastic behavior of rubber 
bands. 
