Donations to the Cabinet were received as follows:
Specimens of copper ore from the Mammoth Lode, Del Norte County, by Dr. Trask.
Regular Meeting, June 1st, 1863.
President in the Chair.
Ten members present, and Dr. Hillebrand, of Honolulu, by invitation.
Dr. Kellogg presented the following paper:
Description of a New Species of Hosackia.
BY A. KELLOGG, M.D.