Regular Meeting, April 3d, 1865.
President in the chair.
Nine members present.
Donations to the Library: Col. Ransom presented a bound copy of Vols. I and II of the Society’s Proceedings.
Dr. Kellogg exhibited from the Academy’s herbarium, accompanied by a drawing and description, a new species of Pentachæta, very abundant on the dry hills of Marin County—Pentachæta purpurea of Kellogg.