149 



A detailed description of some of these features and the changes which 

 have taken place in thirteen years, as shown npon the two maps, form an 

 interesting demonstration of stream work. 



The island at I has disappeared. The horse shoe near M has been 

 cut off, a beech tree removed from its center, and the whole area converted 

 into flood channel. The next bend to the west has been widened and 

 rounded (all done at two or three spring freshets), and the neck nearly 

 cut through. The sharp bend at D has also been widened and the tongue 

 shortened. The cut-off channel across the neck of bend B, a foot deep 

 thirteen years ago, has not been enlarged, and the cut-off, then apparently 

 imminent by overflow, is now likely to take place soon by lateral erosion 

 of the neck. The south bank opposite S has been cut back twenty-five 

 feet, including a large beech tree. West of S the north bank has been cut 

 back forty feet including a large maple. Near P the stream strikes and 

 undercuts a boulder clay bluff, turns to the north and ceases to meander. 

 The general result is a notable enlargement of the area of the flood chan- 

 nel floor, which has become a new flood plain, leaving the old one as a 

 terrace. 



I'is. 3. 



