Regular Meeting, February 19th, 1866.
President in the chair.
Nine members present.
Dr. Colbert A. Canfield, of Monterey, was chosen a Corresponding Member, and Dr. Henry Gibbons and Mr. Henry Janin, Resident Members.
Donations to the Library: U. S. Census, 1860—Agriculture; American Journal of Science, November, 1865, and January, 1866; Proceedings of the Phila. Acad. Nat. Sci., April to October, 1865; Theory of Parallels, by Matthew Ryan; Description of New Species of Pupidæ, by E. S. Morse; Proceedings of Boston Nat. Hist. Soc., Vol. X, Sheet 2.
The following paper was presented.