

344 



ACTION OF RIVERS. 



[Ch. XV. 



most 



to the force of separate raindrops, the water not having been 

 able to collect into rills ; hut it is rarely possible to draw a 



Fie-. 19- 





; r q^ 



>>/v 



Ravine on the farm of Pomona, near Milledgeville, Georgia, as it appeared 



January 1846. 



Excavated in twenty years, 55 feet deep, and 180 feet broad. 



clear line of demarcation between the action of rain and that 

 of running water. When travelling in Georgia and Alabama, 

 in 1846, I saw in both these states the commencement of 

 hundreds of valleys in places where the native forest had 

 recently been removed. One of these newly-formed gulleys 

 or ravines is represented in the annexed woodcut, from a 





