Geographical Notices. 379 
16. 7,800. Rev. Samuel Williams, LL.D., previously Prof. 
of Mathematics in Harvard College, in his Hist. of Vermont, 
published 1794, calculated from the existence of snow on these 
mountains from Oct. to July, that they nearly reach the line of 
peeetoal congelation, or 7,872 feet. He calls their altitude 
ardly more than 7,800. 
7. 8,000. 
i 
as “The White Mountains are estimated to be at 
least 8,000 feet high,” according to Elements of Useful Knowl- 
edge, by Noah Webster, 1812. 
18. 9,800, obtained by the first scientific exploring party on 
tecord, in July, 1784, from imperfect barometric observations, 
Of.the party were Dr. Cutler, of aos Rev. D. Little, of 
| = Society, published 1786, in their Transactions (ii, 42). 
. 3 9. 10,000 and over. Dr. Belknap, however, in his Hist. of 
New Hampshire, vol. 3, published 1792, expresses himself “ per- 
Suaded, that whenever the mountain can be measured with the 
Tequisite precision, it will be found to exceed 10,000 feet, of per- 
pendicular altitude, above the level of the ocean.” He adds, 
that “this peak has lately been distinguished by the name of 
Mt. Washington.” Mr. E. A. Kendall, an Englishman who 
traveled through Northern U.S. in 1808, records the same as 
€ usual estimate. 
20. 11,000 and over, was the height sanctioned by Morse’s 
series of Geographies, at least as late as 1819. : 
21. 12,729, according to Pres. Dwight’s Travels, 1803 (ii, 
: ben at the surface, it probably is always first perceived at mast 
ea, ” 
Il. Norzes ox RECENT GroGRAPHICAL Maps, BOOKS AND INTELLIGENCE. 
Russian America.—The recent purchase of this important 
Province by our government, has awakened special attention to 
_ its physical characteristics. We have already announced the 
_ departure from San Francisco of a scientific party, who are to 
