DAVIS: RIVER TERRACES IN NEW ENGLAND. 283 
Figure 3, or better in Figure 4. This factor in the development of 
terraces was first recognized, as far as my reading has gone, by Hugh 
Miller (the younger), whose view will be presented in abstract ona . 
later page. 
Fie. 3. 
Although the controlling ledges occupy a very small fraction of the 
terrace length, they are of dominant importance ; and there can be little 
doubt that the finest flights of stepping terraces in New England are to 
be thus explained. Terraces of the kind shown in Figure 5 are different 
from those here studied, as will be more fully stated in the next 
Ny mmm 
When the terrace pattern is considered in plan as well as in cross- 
section, it appears that our terraces may be accounted for, first, by the 
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