58 SURFACE GEOLOGY. 



at 350, expanding into a plain in the south-west comer of Winchester, 

 with a slope from 325 to 310; and by the plains at and south from North- 

 field village, about 300 feet above the sea, or 120 feet above the river. 



An examination of the southern maps of Connecticut river (p. 40) 

 shows a second apparently connected series of terraces, which probably 

 marks one of the principal flood-plains formed by the river during its 

 work of erosion. It exhibits a similar slope with that of the highest 

 plain, or of the present river with its bordering intervals. This series is 

 most clearly continuous below the north line of Brattleboro', but seems to 

 be traceable from White River falls, where it appears in the terrace on 

 the west, from 435 to 455 feet above the sea, formed from the under- 

 mined kame. It occurs north and south from West Lebanon, at 430 

 and 440 ; one mile south of Mascomy river, at 440 ; opposite to this, at 

 from 430 to 410; at North Hartland and opposite, from 412 to 400; 

 probably at Hartland depot, from 425 to 410; in the north-west cor- 

 ner of Cornish, from 380 to 375 ; at Windsor post-office, 354 ; in the ter- 

 race of the railroad for four miles southward, from 360 to 350; in the 

 principal terrace opposite Barber's mountain, from 340 to 335 ; east of 

 Weathersfield Bow, from 350 to 340; in the north part of Charlestown 

 and Springfield, small terraces, 350; south from Black river, 360; on the 

 road from Cheshire bridge to Charlestown, 350; in several places to South 

 Charlestown, from 345 to 340 ; in the narrow curved terrace on which the 

 road runs, one to two miles north of Williams river, from 335 to 330; in 

 the principal terrace of Bellows Falls, and that of the Sullivan county 

 railroad for one mile north, from 325 to 320; between Cold river and 

 Walpole, 330; along the railroad, one to two miles south from Walpole, 

 from 315 to 308; at Westminster village, 315; in scanty terraces, for five 

 miles south, from 315 to 300; at East Putney and opposite, from 300 to 

 280; for eight miles southward, numerous terraces, sometimes irregularly 

 sloping, from 310 to 290; in Brattleboro', from the north line to West 

 river, a broad level terrace, 290 ; in the village, 290 and 300 ; at the mouth 

 of Broad brook, the same ; in the wide terrace of the railroad north from 

 Vernon, 290; probably at Cooper's point, 274; opposite Ashuelot river, 

 275 ; at South Vernon, 270 ; on the west side of the river in Northfield, 

 from 264 to 260; and on the east in a continuous terrace, varying from 

 270 to 260, extending from one mile south of Hinsdale to the limit of 

 our map and survey, two miles south of Northfield village. 



