GLACIAL DRIFT, 247 
rough blocks near the road on the east side of the valley, on the south 
flank of Black mountain, which are to be regarded as lateral moraines, 
opposite to those mentioned at Gray’s, but higher up. 
A sixth set of moraines crosses the valley at a new saw-mill near Mrs. 
E. Gray’s, two and a quarter miles north of the bridge, and 255 feet 
higher. Above this point the valley keeps the same contour as far as 
Johnson’s mill, 150 feet higher, and more than a mile distant. No well 
marked local phenomena display themselves here, nor higher up, along 
the carriage-road. Possibly a search in the wooded tract adjacent to the 
stream might reveal something interesting above Johnson’s. A cut in 
the drift here shows it to belong to the lower till. Opposite L. Went- 
worth’s, nearly a mile above Johnson’s, is an esker, or kame, 1,000 feet 
long, which may have originated during the melting of this glacier, and 
is thus one of its evidences. On reaching Grant’s (Breck, on map) the 
present road ceases, but the valley might be followed further to the 
north-west. Here are striae quite varied in direction. The face of the 
rock is smoothed in the direction of the valley a trifle west of south, 
crossed by faint irregular lines S. 33° and S. 83° E. These would be 
explained by calling the smoothing the direction of the ice down the 
valley, and the strize caused by a local tributary sliding from the western 
flank. The top of the ledge, where there is freedom from local currents, 
displays the course S. 44° E,, the normal direction of the ancient drift, 
pointing nearly to Mt. Washington. The Wildcat shows other interest- 
ing phenomena of local action further north, but I have not been able 
to examine them. I will add notices of them from Nowell and Sweetser. 
The slide described by the first properly belongs to one of the tributaries 
of the Peabody river glacier. 
W. G. Nowell has given estimates of the position and dimensions of a slide upon the 
west side of Carter Dome, Vol. I, Apfalachia, p. 83. 1 condense his account. The 
date was the same with that described upon the west side of Tripyramid. Mr. Thomp- 
son, the proprietor of the Glen house, lost his life in this freshet, while managing 
affairs at his saw-mill. The top of the ‘‘ hopper,” where the sliding commenced, is 
1200 metres from the summit. It descended N.N. W. 300 metres, dropping 110 me- 
tres ; then fell 140 metres in a course of 400 metres due north; next moved 500 metres 
W.N. W., descending 110 metres, and continues only 100 metres further. For the 
principal part of the last 700 metres the ledge is perfectly bare from 30 to 60 metres in 
breadth, and has piled up at its base about twenty square acres of rubbish that had 
