464 
PHILOSOPHICAL SOCIETY OF WASHINGTON. 
It was discussed by Messrs. Tittmann, Walcott, Abbe, and 
Steele. 
Mr. C. F. Marvin read a paper on Recent progress in the 
development of the kite. [Published, under the title The me¬ 
chanics and equilibrium of kites, in Monthly Weather Review, 
4°, Washington, 1897, April, vol. xxv, pp. 136-161; also sep¬ 
arately as “ W. B. no. 122,” entitled A monograph on the me¬ 
chanics and equilibrium of kites.] 
It was illustrated by models. 
Mr. H. A. Ha zen read a paper on The evolution of a soaring 
kite. 
It was illustrated by lantern slides. 
469th Meeting. May 1, 1897. 
President Baker in the chair. 
Twenty-one members present. 
The two papers on The evolution of the kite, presented at the 
last meeting, were discussed by Messrs. Marvin, Bigelow, Lang 
ley, Paul, and Hazen. 
Mr. C. K. Wead read a communication on A system of genea¬ 
logical notation. [Not published.] 
It was discussed by Messrs. Paul, Hazen, and Mann. 
Mr. Cyrus Adler spoke on the subject of A proposed cata¬ 
logue of Egyptian papyri and royal monuments. 
This was discussed by Mr. Hough. 
470th Meeting. May 15, 1897. 
President Baker in the chair. 
Eleven members present. 
Announcement was made of the death, on April 17, 1897, of 
Mr. Charles Hugo Kummell. 
