348 [Dec. 1847. 



collections, and a library also, in natural history, may be said to have real- 

 ized the happiest hopes of the American student and the American natural- 

 ist and to have marked an era which must ever be acknowledged as the 

 most important in the history of the Zoological sciences in this country. 



The arrangement of this immense collection, excluding duplicates, will, 

 in all probability be completed during the coming year, and it is also pro- 

 bable that at the next annual meeting of the Academy, a report can be made 

 of the exact number of species aud specimens exhibited. 



It is to be understood, however, that other extensive additions are con- 

 templated, which if received and incorporated into the present collection, 

 may, of course, naturallly affect the issue to which I allude. 



All of which is respectfully submitted by 



John Cassin, 



December 28th, 1847. Curator. 



A note was read from Prof. Haldeman, dated Columbia, 

 Penn., Dec. 27, 1847, requesting that the following correction 

 of his published papers may be noticed in the present No. 

 of the Proceedings. 



The genus Heterodromia, Raid., Proceedings Academy, vol. 3, 

 p. 127, seems to be identical with Psammcechus, Boudier, although 

 the prothorax is not wider than long, as described by Latreille. 



The proposed genus Chorea, Raid., Proceedings Academy, 

 vol. 3, p. 150, is founded upon the female of Cerophytum, unless 

 the structure of the posterior femora should be found to differ. 

 Neither of these rare genera has been yet announced as Ameri- 

 can, and but one species of each is found in Europe. M. Lucas 

 has described a species of Psammoechus from Algeria, which he 

 names Boudieri. 



The Academy then proceeded to an election for Officers for 

 1848. The following result was announced by the Teller?: 



President. 

 William Hembel. 



vice-presidents. 

 J. Price Wetherill, 

 Samuel George Morton. 



CORRESPONDING SECRETARY. 



Walter R. Johnson. 



RECORDING SECRETARY. 



John Lambert. 



