272 Scientific Intelligence. 
ble pressure, and consequently, that the direction of lines of elevation 
must comparatively arbitrary. Geological and geographical ob- 
servations present results which are generally in accordance wit these 
views.”’. 
7. Remarks on the Topography of the State of New York; by Prof. 
Guyor, (from Prof. Guyot’s Report on the various Meterological. sta- 
tions established in New York, in the Rep. Regents Univ., 1851, 292) 
——The main mass of the state of New York may be said to be @ 
high triangular tract of country, or table-land, elevated from 1,500 to 
2,000 feet above the ocean. It may be considered as the northwesiera 
; mriver. But in the south the table-land continues uninterrap 
into the state of Pennsylvania... The eastern edge, along the Hudsoa 
and plain valley, is formed by a series of chains of mountains; 
gap + Isolated from each other, which bear the highest — 
3 southern, or maritime recion, 
2 Thesustem, or the region of the Hudson river and Champlaie 
“peo valley.: 
* hag western, or the region of the western plateau. 
r io the ha lakes, Erie and Ontario. ij mountaia-o! 
. rihern, or th i 
ima ree pa 
a beg leave to state, in a { r racter of each 
of them, and to indicate the menor een ee there 
