Dr. J. P. Kirtland, of Cleveland, Ohio, was elected a corresponding member.
Donations to the Cabinet.
By Mr. Rowlandson, specimen of the wool of the Alpacca and Vicuña, brought from Peru by Capt. Bissell, of the United States sloop-of-war Cyane.
Donations to the Library.
The American Journal of Science, for January, 1863, from the editors.
Mr. Gabb communicated two papers by Mr. Rémond, containing descriptions of new fossils from California.
Description of two New Species of Bivalve Shells, from the Tertiaries of Contra Costa County.
BY AUGUSTE RÉMOND.