﻿148 SALT RIVER July, 



has made a section of the sandy deposit, and formed 

 a high and steep cliff. The valley of the river, 

 deflected to the westward by the rocks of the port- 

 ages, passes here through the more level (upper ?) 

 Silurian strata. 



At Gravel Point {Pointe de Gravoir), ten miles 

 from the portages, a bed of concretionary or brec- 

 ciated limestone protrudes from under a sand-bank 

 forty feet high, and two miles higher up a cliff of 

 cream-coloured and brownish limestone stands on 

 the right bank. The country on both sides of the 

 river there appears to be a j)la,in, which has a 

 general level of about fifty feet above the bed 

 of the stream. 



Just before arriving off the mouth of Salt River, 

 we picked u^) one of the boat's lockers containing 

 the anchor, which had been carried away fifteen 

 miles higher up nearly eight hours before, so that 

 it drifted about two miles an hour, including the 

 time it might have been detained in eddies. 



In 1820, I ascended the very tortuous Salt 

 Elver, for twenty miles, for the purpose of 

 visiting the salt springs, which give it its name. 

 Seven or eight copious springs issue from the base 

 of a long even ridge, some hundreds of feet high, 

 and, spreading their waters over a clayey plain, 

 deposit much pure common salt in large cubical 

 crystals. The mother wate?', flowing off in small 



