596 PROCEEDINGS OF THE AMERICAN ACADEMY. 



The Council reported that the following gentlemen were elected 

 members of the Academy: — 



Class L, Section 1 (Mathematics and Astronomy) : 



Samuel Alfred Mitchell, of University, Virginia, as Fellow. 



Oswald Veblen, of Princeton, New Jersey, as Fellow. 

 Class I., Section 3 (Chemistry): 



Tenney Lombard Davis, of Cambridge, as Fellow. 



Duncan Arthur Maclnnes, of Cambridge, as Fellow. 

 Class I., Section 4 (Technology and Engineering): 



William Hovgaard, of Cambridge, as Fellow. 



James Robertson Jack, of Cambridge, as Fellow. 



William Henry Lawrence, of Boston, as Fellow. 



Samuel Wesley Stratton, of Cambridge, as Fellow. 



Edward Pearson Warner, of Cambridge, as Fellow. 

 Class II., Section 2 (Botany) : 



Joseph Charles Arthur, of Lafayette, Indiana, as Fellow. 



Elvin Charles Stakman, of St. Paul, Minnesota, as Fellow. 

 Class II., Section 3 (Zoology and Physiology) : 



Manton Copeland, of Brunswick, Maine, as Fellow. 



George Albert Boulenger, Brussels, as Foreign Honorary Member. 

 Class II., Section 4 (Medicine and Surgery): 



Roger Irving Lee, of Cambridge, as Fellow. 



Hans Zinsser, of Boston, as Fellow. 

 Class III., Section 1 (Philosophy and Jurisprudence): 



Leslie Colby Cornish, of Augusta, Maine, as Fellow. 

 Class III., Section 2 (Philology and Archaeology): 



Henri Guy, of Grenoble, as Foreign Honorary Member. 

 Class III., Section 3 (Political Economy and History) : 



Carl Lotus Becker, of Ithaca, New York, as Fellow. 



Michael I. Rostovtzeff, of Madison, Wisconsin, as Fellow. 



The following communication was presented: — 



Edwin B. Wilson, "Statistics." 



The following papers were presented by title : — 



"An Example in Potential Theory," by O. D. Kellogg. 



"Mitochondrial Bodies in the Spermatogenesis of Chorthippus 

 curtipennis (Scudd.)," by E. L. Mark and L. C. Wyman. 



"Trajectory Surfaces and a Generalization of the Principal 

 Directions in any Space," by Joseph Lipka. 



The Meeting was dissolved at 10.10 P.M. 



