352 W. C. Kerr—Action of Frost in the 
veins and seams are so numerous in places, and contain so 
much free and loose gold in the crevices and on the walls that 
through the mass is due, was produced by frost, and that these 
depth of eight or ten feet; and as in Labrador and other sub- 
arctic regions the frost of the present winters penetrates to a 
much greater depth, so, it is evident, that during the preva- 
lence of the great ice sheet over the northern end of the conti- 
were earth glaciers, and these deposits may be denominated 
Jrost drift, as distinguished from proper glacial drift. 
