CONTENTS 
Page. 
Scientific Proceedings (40th~44th meetings) : 
Communications of the fortieth meeting, October 19, 1910 . . I 
Communications of the forty first meeting, December 21, 1910 . 29 
Communications of the forty second meeting, February 15, 191 1 . 51 
Communications of the forty third meeting, April 19, 191 1 . . 85 
Communications of the forty fourth meeting, May 17, 191 1 . .119 
Recapitulation of the names of the authors and of the titles of the 
communications 141 
Executive Proceedings (40th-44th meetings) 149 
Register of Names and Addresses of the Members . . . .151 
List of Officers 157 
Classified List of Members 159 
Index of the Scientific Proceedings 163 
