k6^ 



3 



u 



ILLUSTRATIONS OF THE 



♦ 



have formed th 



ey through which 



diilance of about three leagues at lead from 



the pi 



here th 



into the lake. 



I 



: river now difcharges itfelf 

 The ground there is perfedly ho- 

 rizontal, compofed of fand and mud, little raifed 

 above the level of the river, and full of marHies 



The depofit 



de bv the Rhone afi 



the lake, is vifibl 



to 



eye 



a 



d may be 



falling down in clouds to the bottom 



b 



The great lakes of North Am 



•6 



a 



the fame changes, and, it would feem 



with 



- f * 



more rapiciit}- 



A 

 ft 



s the 



rivers, h 



fe 



v;hich fupply thefe vj 



them very great, the filling up is much lefs 



iriarkable than the draining oiTof the water, by 



of 



deepening of th 

 ler 



An intelliger 



h 





remarked, that in Lake Superior itfelf 

 the diminution of the waiters is apparent, and 

 that marks can be difcovered on the rocks, of the 

 furface having been fix f^et higher than it is at 



pref( 



In the fmalier lakes this d 



ilill more evident *. In fome of thofe far inland 

 the ground all round appeared to the fame tra 



the 



r to be the depoiite 

 lakes themfelves : 

 : expanfion f , 



o 



f wh 



ay b 



coniidered as a 



322. In 



* Mackenzie's 



Voyages through the 



Continent of 



Nort 



•th America t^ the Frozen and Pacific Oceans, 



p.xlii, andxxxvi. 



f Il):d. p. 122. 



