Regular Meeting, July 1st, 1867.
Vice President Ransom in the Chair.
Twenty members present.
Donations to the Cabinet: Native oysters, (O. laticaudata), also varieties of Purpura lactuca, from Dr. Cooper; cone of Pinus contorta, and branch and fruit of Garrya elliptica from Port Trinidad; eggs, cocoon, and animal of the California silkworm, (Saturnia Californica) by Dr. Lanszweert; Aristolochia Californica, from Angel Island, by Mr. E. Brooks.
Mr. Stearns read a note from Professor W. P. Blake, stating that the fossil vertebræ which he exhibited at the meeting of November 18th, 1866, were not those of saurians, as he had supposed, but of one of the larger forms of Delphinidæ.
Mr. Stearns exhibited specimens of Haliotis from Monterey, which were evidently hybrid forms. Some remarks on the peculiarities and geographical distribution of these mollusks were made by Messrs. Stearns and Cooper.
Dr. W. P. Gibbons made some additional remarks, supplementary to his communication, at a previous meeting, on the extinct redwood forests of the Coast Ranges on the east side of the Bay of San Francisco. These remarks were followed by a discussion in which Messrs. Cooper, Kellogg, Bolander, Veatch, and Stearns took part.