Regular Meeting, April 5th, 1863.
President in the Chair.
Present, ten members; and Mr. W. S. Moses, by invitation.
Donations to the Library:
Chart of the oscillations of the Sacramento River, by T. M. Logan, M.D. Proceedings of the Philadelphia Academy of Natural Sciences, for September, 1862. Journal of the Boston Natural History Society, volume VII, Nos. 2 and 3.
Dr. Kellogg read the following paper:
Description of a New Genus and Species of Plant from Nevada Territory.
BY A. KELLOGG, M.D.