161 



Among some specimens recently received from Ore- 

 gon Territory, was a piece of a meteorite containing 

 crystals of olivine, yielding 9 per cent, of nickel. It was 

 identical in appearance, and probably in composition, 

 with the Pallas meteorite of Siberia ; he thought it not 

 improbable that pieces may have fallen in the same me- 

 teoric shower in both countries, as has happened in other 

 instances, though less widely separated. 



Dr. Jackson read a letter from Emilien de Wael, of 

 Antwerp, asking that deficiencies in his copy of the So- 

 ciety's Journal might be supplied, and also soliciting 

 recent and especially freshwater species from this coun- 

 try : it was referred to the Committee on Publications 

 and to the Curator of Conch ology. 



Dr. Kneeland exhibited a growing specimen of Tes- 

 tuditiaria elephantipes^ an endogenous plant of the fam- 

 ily DioscoreacecB, and a native of South Africa. 



Mr. Samuels presented a series of thirty microscopic 

 slides, to be used for purposes of exchange with the 

 London Microscopical Society. They were referred to 

 Dr. Durkee, Mr. Stodder, and the Committee on Publi- 

 cation. 



October 19, 1859. 



The President in the Chair. 



Dr. Gould presented descriptions of shells, collected by 

 the North Pacific Exploring Expedition, as follows : — 



Patella grata. T. ovato-conica, elevata, apice acuto ad- 

 modum antico, extus rudis, cinerea, costis elevatis compressis jux- 

 ta marginem tubulosis radiata ; margine expanse denticulate ; 



PROCEEDINGS B. S. N. H. — VOL. VII. 11 DECEMBER, 1?59. 



