220 The American Geologist. October, 1892 
After referring to the outer moraines wliicli were traced fifteen 
years ago on Long Island, Martlia's Vineyard, Nantucl^et, the 
Elizabeth Islands, and Cape Cod, and the moraine in northern 
Massachusetts recently reported by Mr. Ralph S. Tarr as reach- 
ing from Cape Ann westerly to the Connecticut river, the author 
described morainic belts which he has observed in New Hamp- 
shire and Vermont, characterized by drift hills and knolls of very 
irregular and broken contour, with abundant bowlders, and en- 
closing man}^ ponds in depressions of the drift. One of these 
belts extends from the south side of Squam lake northeasterly to 
the vicinity of Conwa}', N. H. Another is traceable from near 
Burlington, Vt. , eastward to Umbagog lake and the Rangely 
lakes in the west edge of Maine. 
A passage in the liistory of the Cnyahogd ricer. By p]. W. 
Claypole. This river of northern Ohio flows in a preglacial 
valley along nearly all its course from Akron to its mouth at 
Cleveland. In one place, however, the river flows in a rocky 
gorge on the west side of the old valley, which there had become 
filled with drift to a hight somewhat above its enclosing rock-wall. 
The postglacial erosion of this gorge and of the drift filling the 
valley seems capable of affording, with further study, a measure 
of the time since the recession of the ice-sheet from that area. 
Notes hearing upon the changes of the preglacial drainage of 
ivestern Illinois and eastern Lnoa. By Frank Leverett. Deep 
wells indicate that a drift-filled valley extends from the Missis- 
sippi river near its most eastern portion on the boundary of Iowa, 
above the Rock Island rapids, southeasterly to the Illinois river. 
It seems therefore worthy of inquiry whether this may have been 
the preglacial course of the Mississippi, since the rock gorges of 
the Rock Island and Des Moines rapids show that between south- 
eastern Iowa and Illinois it has cut a new channel after being 
turned from an earlier valley by the ice-sheet. In preglacial and 
interglacial times, however, a large river ran in the present course 
of the Mississippi below Keokuk, and the drift-filled valley of 
this river was traced by Gen. G. K. Warren past the Des Moines 
rapids on their west side. 
Extra-morainic drift in Neio Jersey. By A. A. Wright. In 
the west part of northern New Jersey a general sheet of till 
covers the country southward from the terminal moraine at Bel- 
videre for a distance of a dozen miles, across 8cott's and Pohat- 
