MODIFIED DRIFT ALONG CONNECTICUT RIVER. 39 
but no prospect of water, which caused this site, selected for the buildings 
of Dartmouth college, to be abandoned, and led to their location farther east, 
upon coarse glacial drift. This log was at nearly the same level with the 
clayey stratum described, and adds to our knowledge of the conditions 
which prevailed at the time of its deposition. The glacial age had here 
been succeeded by a temperate climate, under which forests grew again 
upon the land; and floods, sent out freighted from the melting ice-sheet, 
which still remained farther north and on the highlands, brought down 
drift-wood to be buried with this alluvium. It was not till long after this 
that the river ceased its work of accumulation and began to cut its pres- 
ent channel. 
Veins of segregation in sand, attended in some instances by a slight 
displacement or fault, are well displayed at the present time by the fresh 
Depression, Kame. River. 
g Fault. Faults. 
Ww 
3 inches to x foot. 515. 373- 
Segregated veins 
in lower portion. 
oan 
375 ft. above sea. a ak a Ci ae nla 
Fig. 9.—SECTION ON SOUTH SIDE OF ROAD, EAST FROM LEDYARD BRIDGE, 
HANOVER. Length, about 700 feet. 
washing away of the bank, a portion of the high plain, on the south side 
of the road between Hanover and the depot. These veins abound for 200 
feet or so east from the kame, a good section of which is also shown here; 
they are in somewhat obliquely stratified sand, which inclines conformably 
where it overlies the side of the kame. 
Between Hanover and White River Junction the Connecticut descends 
40 feet, principally at White River falls (vol. i, pp. 302* and 319), situ- 
ated two miles above the mouth of White river, and three miles above 
that of Mascomy river. An illustration of the terraces on the west side 
of these falls, as seen from Colburn hill in Lebanon, appears in Dana’s 
Manual of Geology.+ The upper terrace is wide, with a height 525 feet 
* The survey for this map was made when the river was above its ordinary height, which is at Hanover 373 
and at White River Junction 333 feet above the sea. 
+ First edition, p. 548; second edition, p. 544. 
