1886.] Recent Literature. 627 
that the impact of waves is not reinforced by the impact of min- 
eral matter-borne by them. The detritus worn from the shore is, 
of course, always at hand to be used by the waves in continu- 
ance of the attack ; and to this is added other detritus carried 
along the piiris 
and wave-cut terrace are then described and well 
illustrated ; a follow the discussion of littoral transportation, 
the beach and the barrier. Under the last head the following 
remarks on the part played by great floods and storms will inter- 
est our readers : 
“ Not only is it true that the work accomplished in a few days 
d Fic, 2.—Fault scarps and shore lines at the base of the Wasatch. 
radi height of the chief flood of the year is greater than 
= 1S accomplished during the remainder of the year, but it 
ay even be true that the effect of the maximum flood of the 
of oie neration or century surpasses the combined effects 
minor floods. It follows that the dimensions of the chan- 
