14 WKITINGS OF JOSEPH HENRY. [1824- 



The following tables of ascents and descents will serve to 

 give a correct idea of the general configuration of the sur- 

 face of the whole of the first division of the state, or that 

 part situated between the Hudson and Lake Erie. 



No. 1, is a section in an east and west direction from the 

 Hudson to Lake Erie. It commences at the level of tide in 

 the river, and passes over the several ridges to the village of 

 Bath, in Steuben county, and then crosses the high table 

 land to Lake Erie. — No. 2, also begins on the Hudson, at 

 Kingston landing, and follows principally the valleys of 

 streams along the Pennsylvania line to Bath, where it inter- 

 sects with No. 1. — Nos. 3, 4, 5, 6, 7, 8 and 9, are sections at 

 right angles to Nos. 1 and 2. The five last, pass from points 

 on the south shore of Ontario up the slope of the great de- 

 pression which contains this lake, to the summit of the table 

 land, and then down the valley of streams to the Susque- 

 hanna and the Allegany rivers. — No. 3, is from a point in 

 the valley of the Mohawk, and passes over the ridge to the 

 head waters of the Susquehanna, and then descends this 

 river to the Pennsylvania line. — No. 4, extends entirely 

 across the state, from the St. Lawrence to the Susquehanrta 

 river, and exhibits the deep depression of the Mohawk valley 

 below the level of the ridges on each side. 



The several distances given in these tables are in most 

 cases straight lines, measured from point to point on a map, 

 but the elevations are all from actual surveys, made at the 

 expense of the state. 



The elevations in table No. 1, between the Hudson river 

 and Bath, are from the survey of William Morell, Esq. The 

 remaining elevations of this table, as well as those in No. 2, 

 are from the personal survey of the writer of this article. 

 The elevations in both these tables were taken under the 

 direction of Messrs. Hammond, Morell and Pitcher, as com- 

 missioners to explore the route of a state road through the 

 southern tier of counties, in 1825. No. 3, is from the survey 

 of Dr. William Campbell and De Witt Clinton, Jun. The 

 remaining six tables were taken from the reports and maps 

 of Messrs. Geddes, Roberts, Hutchinson, Young and Whippo, 



