350 



lusite made in an altered argillaceous slate, in place, on 

 the road recently made on the side of Mt. Washington. 



At Boar's Head, near Rye, N. H., are boulders containing this, 

 which must have come from this locality on the easterly side of 

 the mountains. It is interesting to be able to add another to the 

 few localities in the United States where these beautiful crystals 

 are found. 



Dr. White exhibited the fungous growth commonly 

 called California beer seed undergoing its development 

 in a solution of molasses and water ; much carbonic acid 

 is evolved from this, and an excellent beer may be made 

 from it if properly flavored. 



The growth is very rapid, and consists of the spores of a fun- 

 gus, somewhat resembling, though they are larger and rounder, 

 those of the yeast plant {Torula). The spores, by their aggrega- 

 tion, form masses of the size and shape of popped corn. It is said 

 to grow upon a tree in California. 



The President exhibited a fossil from the southwest 

 frontier of the United States. 



The matrix was calcareous, and imbedded in it was a portion 

 of the skull of the Capybara, the largest of the rodents, now con- 

 fined to South America. Its principal interest consisted in its 

 showing the narrowing down of the geographical distribution of 

 this species, as the animal has never been found living in North 

 America nor in the vicinity of the Isthmus in South America. 



Messrs. William N. Eayrs and John McKay, of Bos- 

 ton, and William EUery Copeland, of Roxbury, were 

 chosen Resident Members. 



DONATIONS TO THE MUSEUM. 



September 5, 1860. An African monkey ( Cohbus satanas) and a sacred ibis; 

 by Paul B. Du Chaillu. A South American boa; by Wm. A. Lerow. A green 

 snake {Coluber vernalis) from the White Mountains; by S. D. Crane. An echi- 

 nus {Encope subclausa) from the head of the Gulf of California; by Lieut. C. H. 

 B. Caldwell, U. S. N. Three injected bull-frogs; by E. Samuels. Three centi- 

 pedes and a large scorpion from Singapore, an echinus from the Cape of Good 

 Hope, portions of the spines of the halibut and blue-fish, and a large beetle from 



