1891.] baker shells from the mauritius. i9 



November 9, 1891. 

 stated meeting. 

 The President, Professor H. L. Fairchild, in the chair. 

 Sixty persons present. • 

 The Council report recommended : 

 (r.) The payment of certain bills. 



(2.) The election of the following candidates as resident 

 members : 



Professor Arthur L. Baker, 

 Mr. Walter B. Smith. 



The bills were ordered paid, and the candidates were elected by 

 formal ballot. 



The President, Professor H. L. Fairchild, presented a paper on 



THE ORIGIN, STRUCTURE AND HISTORY OF 

 MOUNTAINS. 



The paper was illustrated by blackboard diagrams and lantern 

 views. 



November 23, 1891. 



stated meeting. 



The President, Professor H. L. Fairchild, in the chair. 



Forty-five persons present. 



The following paper was read by title : 



NOTES ON A COLLECTION OF SHELLS FROM THE 



MAURITIUS ; WITH A CONSIDERATION OF THE 



GENUS MAGILUS OF MONTFORT. 



By Frank C. Baker. 



Several months ago I had occasion to study a large collection of 

 shells from the Island of Mauritius. These were nearly all fresh, live 

 specimens, in many cases with theopercula /// situ, and with the epider- 

 mis intact. The collection numbers some two hundred and fifty species, 

 represented, in most cases, by a score or more individuals. 



