32 



WKITINGS OF JOSEPH HENRY. 



[1824- 



of two hundred feet, and then sweeps backwards with a 

 very gentle rise to the mountain chain. On this shelf are 

 situated all the cities and villages along the river, with the 

 exception of Troy, which is the only place on the Hudson 

 erected on the alluvial flat. 



The lower or southern sub-basin of the Hudson, is a sec- 

 tion of country highly interesting to the political geographer. 

 It includes all that part of the state south of the Highlands, 

 (except Long-Island,) as well as a part of New-Jersey. Its 

 greatest width is from the southern sources of the Raritan 

 river, to the eastern head of Croton river, in Putnam county, 

 a distance of about 100 miles. 



No. XIII. — Table of Afscents and Distances through the Hudson and Cham- 

 plain valley, from the Ocean, at New -York, to the St. Lawrence River. 



Koute. 



Miles. 



Feet. 



New -York to the mouth of the Mohawk 



Level at Stillwater 



Level at Fort Miller 



Beginning of summit level at Fort Edward, 



nearly opposite to Glen's Falls 



Along that level to Fort Ann 



Lake Champlain, at Whitehall 



Along the lake to its outlet, near the 45° of 

 north lat 



Down the Chambly or Sorel river to its junc- 

 tion with the St. Lawrence, 40 miles above 

 the head of tide water 



14 



17 



12 

 12 



110 



70 



154 

 168 

 185 



193 



205 

 217 



327 



397 



rises 99 



rises 18 



rises 30 

 rises 



fiills 54 



falls 33 



falls 55 



99 

 117 



147 



147 



93 



90 



35 



The Hudson river, which occupies so important a part of 

 the Hudson and Champlain valley, is in itself one of the 

 most interesting water courses on the surface of the globe ; 

 and as a navigable inlet to the vast and fertile regions of the 

 west, demands a more particular notice than the limit of 

 this article can afford to any other river in the state. It is 

 formed of two principal branches : the Hudson proper, and 

 the Mohawk. Each of these deserves particular attention, 

 as contributing to supply the waters of our northern and 

 western canals. 



