38 MINUTES. [April 8, 4, 5, 



Evening Session, 8 P.M. 



The following papers were read : 



" The Eelation of the American University to Science," 

 by President Henry S. Pritchett, of Boston. 



" The Advancement of Knowledge by the Aid of the 

 Carnegie Institution," by President Daniel C. Gilman, of 

 Baltimore. 



April 4.— Morning Session, 10 A.M. 

 Vice-President Langley in the Chair. 



The following papers were read : 



" Results of Observations with the Zenith Telescope at 

 the Sayre Observatory," by Prof. Charles L. Doolittle, of 

 Philadelphia. 



"On a New Method of Transiting Stars," by Prof. 

 Monroe B. Snyder, of Philadelphia. 



" On the Evolution of Martian Topography," by Mr. 

 Percival Lowell, of Flagstaff, Ariz. 



" Historical Investigation of the Supposed Changes in the 

 Color of Sirius since the Epoch of the Greeks and Romans," 

 by T. J. J. See, Ph.D., of Washington. 



" Recent Progress in the Lunar Theory," by Prof. Ernest 

 W. Brown, F.R.S., of Haverford, Pa. 



" On the Spectra of Gases at High Temperature," by Prof. 

 John Trowbridge, of Cambridge, Mass. 



Executive Session, 12.40 P.M. 

 President Wistar in the Chair. 



Pending nominations were read, and the candidates for 

 membership were balloted for, and the Secretaries reported 

 the election of the following : 



Residents of the United States — 



John A. Brashear, Sc.D., Allegheny, Pa. 



