ACADEMY OP NATURAL SCIENCES. 368 



Regular Meeting, September 2d, 1867. 



President in the chair. 



Twenty members present. 



Donations to the Library : Washington Astronomical Observations 

 for 1864, 4to, Washington, 1867. Report on Interoceanic Canals 

 and Railroads between the Atlantic and Pacific Oceans, 8vo, 1867. 

 Speech of Hon. Charles Sumner on the Cession of Russian America. 



A letter from George Gibbs, Esq., transmitted through the 

 Smithsonian, and urging the importance of collecting Indian 

 crania on this coast, was read and commented on by Professor 

 Whitney. He also exhibited a part of a jaw of Oreodon, sent from 

 Montana, by Mr. Keyes. The precise locality where it was said to 

 have been found is about twenty miles northeast of Bannock City. 

 on Rattlesnake Creek, a branch of the Beaver Head. If there is 

 no mistake in the locality, this is a very interesting occurrence, 

 as the existence of these tertiary deposits characterized by bones of 

 extinct mammalia (the White River beds) was not before known 

 as far west, or at as high an elevation, as this. tf 



Professor Whitney gave an account of his recent visit to Oregon, 

 Washington Territory, Vancouver Island, and British Columbia. 

 He spoke particularly of the volcanoes of that region, and remarked 

 that he had ascertained, by rough trigonometrical measurements, 

 that Mount Hood was at least two thousand feet lower than Mount 

 Shasta. He was about to ascend the first-named peak, in order to 

 measure it barometrically ; but, on learning that Colonel Williamson 

 was intending to do the same thing, during the present season, he 

 proposed to await that gentleman's measurement, the result of which 

 could not fail to be accepted by all as eminently trustworthy. 

 Professor Whitney remarked that his journey had been undertaken 

 chiefly with a view to the study of the " surface-geology," and that 

 he would, on a future occasion, bring before the Academy the re- 

 sults of his observations. 



Mr. Bolander made some remarks on the distribution of the red- 

 woods and Big Trees in California, and exhibited a map, prepared 

 at the office of the Geological Survey, on which the extent and 

 position of the regions occupied by these two species of Sequoia 

 were shown by colors. 



