582 THE JOURNAL OF GEOLOGY. 
result of several years’ accumulations, but it did not appear to 
be disrupted or disturbed in any observable degree by pressure 
from the ice-cap beyond. The moraine, pushed up between the 
ice-cap and the snow-drift border, showed evidences of motion, 
as already indicated; but this must have been very slow, other- 
wise the moraine would have been pushed over the wind-drift 
border or both pressed forward together, of which there seemed _ 
to be no evidence. The material rolled along by the little fring- 
ing streams that bordered the ice-cap, was found to be rounded 
up to the very edge of the snow-drift border, and this strength- 
ened the conviction that these little streams had been engaged 
in their work for some considerable period. Individually they 
were usually mere little shallow brooklets and the amount of 
erosion they could accomplish ina single year would be slight. 
The impression of slow motion and limited vigor was further 
strengthened by the fact that the water of these little streamlets 
was clear and free from observable silt. ad the ice been 
moving at any notable rate, or acting with any appreciable vigor 
on the angular sandstone at its edge and in its bottom, the 
issuing streams could scarcely have failed to be silty. 
T. C. CHAMBERLIN. 
