WATERFALLS 
377 
181 . 
Taghannuc falls, Tompkins county. From a sketch by Mrs. Hall. 
CHAPTER XIX. 
Waterfalls. 
The numerous ancl picturesque waterfalls of the western part of the State are intimately 
connected with the modern action of rivers and streams, in excavating and deepening their 
channels. That every fall of water is receding by wearing back its bed, will admit of de¬ 
monstrative proof, wherever observations have been continued for any length of time. Even 
the short period of four or five years has been sufficient to show, in many instances, a constant, 
gradual recession, varying with the quantity of water and the nature of the rock. The 
greatest amount of water does not always, however, appear to be attended with the most rapid 
recession; for where the stream is so small as to be entirely frozen during winter, the effects 
[Geol. 4th Dist.] 48 
