51 



The President read a letter from Mr. Edward Tuckerman 

 now in Europe, giving a very interesting account of his re- 

 ception by botanists abroad, both in England and on the 

 Continent. 



The President announced to the Society the death of 

 Professor A. P. Decandolle of Geneva, who was elected an 

 honorary member, at the last meeting of the Society. 



He read a memoir of his life and services to the cause of sci- 

 ence. On motion of Rev. Dr. Greenwood, it was voted, That the 

 President be requested to communicate with the son of Prof. De 

 Candolle, and to express the sympathy which this Society feels in 

 the loss to the scientific world of his distinguished parent, and that 

 the President be further requested to prepare a memoir for publi- 

 cation in the Journal.* 



Adjourned, 



F. A. EDDY, Rec. Sec. 



December 1, 1841. 

 The President in the Chair. 



Dr. Binney exhibited four species of N. American Helices, 

 which he supposed to be new, and requested that they might 

 be submitted to a Committee for examination as to this fact. 



Voted, That they be submitted 'to the Chairman of the 

 Committee on Conchology. 



Dr. Binney also read a paper, " on some of the species 

 of naked Pneumonobranchous Mollusca of the United 

 States," containing a new genus and two new species, and 

 four species previously known, viz. Limax agrestis, Lin. ; 

 L. hortensis, Fer. ; L. Jiavus, Lin. : Tebennophorus Caro- 

 linensis, Bosc. 



Genus Tebennophorus, Binney. Mantle covering the whole supe- 

 rior surface of the body ; pulmonary cavity anterior, orifice on the 

 right side toward the head ; orifice of the rectum contiguous to, 

 and a little above and in advance of the pulmonary orifice ; organs 

 of generation united, orifice behind and below the superior tenta- 



* Published in Silliman's Journal, Vol. XLII. p. 217. 



