ACADEMY OF SCIENCES. 139 



Mr. Hanks, Corresponding Secretary, stated that the American 

 Association for Advancement of Science had accepted the Acade- 

 my's invitation to hold a meeting here in 1872. 



Regular Meeting, October 3d, 1870. 

 President in the Chair. 



S. Clinton Hastings, Jacob R. Snyder and Dr. N. R. Davis 

 were elected resident members ; Prof. Esmark, of Christiania, Nor- 

 way, and Thomas London, of Dalles, Or., corresponding members. 



Donations to the Museum : Coal, from the new Mines on Queen 

 Charlotte's I., by Prof. Davidson. Hamburg coin of 1728, by Dr. 

 J. B. Trask. A skull of an Apache Indian, by Dr. Sawyer. A 

 skull of a badger, ( Taxidea) from forty feet beneath the surface at 

 Los Angeles, Cal., in asphaltum beds. Australian plants, by Dr. 

 F. Milller, through Prof. Bolander. 



De Kellogg exhibited a skin of a Bushy-tailed Rat, (^Neotomd) 

 from the summit of the Sierra Nevada, at the Railroad Pass, lati- 

 tude 39^ 



Donations to the Library : 



Coast Pilot of Alaska, Washington Ter., Oregon and California, G. David- 

 son, U. S. C. S., Washington, 1809,2 vol., 8vo. Astron. and Meteorol. Ob- 

 serv. at U. S. Naval Observatory for 1869, Wash., 1870, 1 vol., 4to. Nobert's 

 test plate and stria3 of Diatoms, Sullivant & Wormley, Xew Haven, 1861, 

 pani., 8vo. Nunquam Otiosus, Zool. Miltheil., Dr. L. W. Schaufuss, Dresden, 

 1870, pani., 8vo. An. Rept. Directors of Cincinnati Observatory, 1870. pam., 

 8vo. The Eared Seals, [Olariada) J. A. Allen, Cambridge, Mass., 1870, pam., 

 8vo. Molluscan Fauna of Peru, Tertiary, New Haven, 1870, pam., 8vo. An. 

 Catal. Muss. Inst, of Technology, Boston, 1870, 1 vol., 8vo. Act to Establish 

 Quarantine and Sanitary Laws, S. F., 1870, pam., 8vo. 



The President made some remarks on the fossil trees of Calistoga, 

 which he found to be imbedded in an tufaceous sandstone, of 

 volcanic materials, their petrification being caused by infiltration 

 of silicate of potash, contained in such large quantities in these 

 volcanic rocks. As the softer rock wears away, the trees are ex. 

 posed. It has not yet been determined whether they are conifers 

 or dicotyledonons. 



