1904.] MINUTES, 101 



Ernest Kiitherford, Montreal. 



Jakob Heinrich Ysurt Hoff, Bc^-lin. 



Wilhelm Waldeyer, Berlin. 



The following papers were read : 



"A System of Passenger Car Ventilation,'' by Dr. Charles 

 B. Dudley, of Altoona, Pa. Discussed by Mr. Willcox, Dr. 

 Marshall and Prof. Heilprin. 



'^Atmospheric Nucleation,'' by Prof. Carl Barus, of Provi- 

 dence, P. I. Discussed by Profs. Kraemer, Conklin and 

 Snyder. 



"On the Classification of Meteorites,'' by Dr. Aristides 

 Brezina, of Vienna. 



'^Doliolum and Salpa,'' by Prof. William Keith Brooks, of 

 Baltimore. Discussed by Prof. Conklin. 



" On the Breeding Habits of the Spade-Foot Toad (Scaphi- 

 opus solitarius)/' by Dr. Charles Conrad Abbott, of Trenton. 

 N. J. 



" On the Occurrence of Artifacts Beneath a Deposit of Clay,'' 

 by Dr. Charles Conrad Abbott, of Trenton, N. J. 



"The Organization of the Germ Cells and Its Bearings on 

 Evolution," by Prof. Edwin Grant Conklin, of Philadelphia. 



" The Origin and Nature of Color in Plants," by Prof. Henry 

 Kraemer, of Philadelphi'a. 



Saturday, April 9. — Morning Session, 10 A.M. 

 President Smith in the Chair. 



"The Establishment of Game Refuges in the United States 

 Forest Reserves," by Mr. Alden Sampson, of Haverford, Pa. 

 Discussed by Profs. Morse and He wet t. Dr. Brashear and 

 the President. 



"The Use of the Relative Pronouns in Standard English 

 Writers," by Prof. Waterman T. Hewett, of Ithaca, N. Y. 



