294 UP THE NORTH KIVER. 



on the other side from fresh materials. We shall be able 

 to see all this work going on, upon a comparatively small 

 scale, when we get to Carlton." 



Carlton was the name which I give to the town where 

 Lawrence and John lived. It was situated among the 

 mountains in the interior of New England. 



" I mean to watch the river when I get home," said John, 

 " and see how it works." 



"You can even do more than that," rejoined Lawrence ; 

 " you can actually experiment with a stream yourself, if 

 you take one small enough ; for the laws which govern the 

 flow of water, and the transportation of solid matter sus- 

 pended in it, or borne along by it, are the same, and the 

 effects that result are analogous, whatever is the size of 

 the stream; only in the smaller streams the changes are 

 more rapid, and being, moreover, comprised within a nar- 

 rower area, are more easy of observation." 



" Yes," said John, " there's the Beaver Brook, where I 

 used to have my dam. I mean to go and see how it is on 

 the Beaver Brook as soon as I get home." 



The conversation on this subject was here suddenly in- 

 terrupted by the sound of the gong, on hearing which John 

 rose at once with great alacrity, and, followed by Lawrence, 

 went down to supper. He, however, did not forget what 

 Lawrence had explained to him about the action of rivers 

 in filling up such natural depressions in the land as came 

 in their course, and forming green and fertile meadows in 

 the places they had occupied, nor the resolution which he 

 had made to investigate the subject by observations and 

 experiments upon the streams in the neighborhood when 

 he should reach home. An account of the results of these 

 observations and experiments will be contained in the next 

 volume of this series, which is to be entitled WATER AND 

 LAND. 



