CONTENTS. 



Scientific Proceedings (6ist-68th meetings): 



PAGE 



Communications of the sixty-first meeting, October 21, 1914 . 1 

 Communications of the sixty-second meeting, November 18, 1914. . . 37 

 Communications of the sixty-third meeting, December 16, 1914. ... 51 

 Communications of the sixty-fourth meeting, January 20, 1915 ... 71 

 Communications of the sixty-fifth meeting, February 17, 1915 ... 95 

 Communications of the sixty-sixth meeting, March 17, 1915 .... 117 

 Communications of the sixty-seventh meeting, April 21, 1915 . . . 141 

 Communications of the sixty-eighth meeting, May 19, 1915 .... 179 

 Recapitulation of the names of the authors and of the titles of the com- 

 munications 219 



Executive Proceedings (6ist-68th meetings) 232 



Constitution and By-laws 236 



Register of Names and Addresses of the Members 241 



List of Officers 248 



Classified List of Members 249 



Index of the Scientific Proceedings 252 



iii 



