Regular Meeting, February 16th, 1863.

President in the Chair.

Fourteen members present.

Donations to the Cabinet were received as follows:

From J. E. Clayton, Esq., a set of ores from the Russ District, California.

Donations to the Library:

Proceedings of the Zoological Society of London for the year 1857: from Dr. Cooper. Astronomical and Meteorological Observations, made at the U. S. Naval Observatory during the year 1861: from the U. S. Naval Observatory.

Dr. Kellogg read the following paper:

Description of two New Species of Plants from Nevada Territory.

BY A. KELLOGG, M.D.