MODIFIED DRIFT ALONG CONNECTICUT RIVER. 



59 



It will be seen that this list embraces the most conspicuous terraces 

 below the highest plains. The formation of the terraces has taken place 

 by excavation of a vast deposit that filled the valley level with these upper 

 plains ; and it might happen that at some period in the deepening of the 

 channel the river would hold nearly the same height for a longer time 

 than usual, after which the deepening might go on rapidly again, leaving 

 the broad flood-plain then formed to be shown only by remnants, as in 

 this series. At the least, it cannot be doubted that this is the true ex- 

 planation of its most notable portions, as for the eighteen miles through 

 Brattleboro' and southward, and for eight miles south from Windsor. 



Recapitulation of Modified Drift of Connecticut River. 



