during the melting of the Glacier. 419 
in the upper twenty-foot stratum on the Quinnipiac has no 
other explanation than a change in the direction of the current. 
Among them, I here mention only that I have observed seve- 
ral cases along river-valleys, out of the reach of the sea, of di 
in both directions; and, in some of them, obliquely laminat 
layers dipping down stream had a thickness of several feet. 
Such facts bear against the view.* 
4, Alluvian Deposits —Another fact favorable seemingly to 
the conclusion that the land remained 40 feet or more below its 
present level for some time after the Glacial flood had passed, is 
alforded by the existence of the deposit of horizontally-bedded 
white sands against the northward slope of the terrace of strat- 
ified drift at the northeast extremity of the Air Line Railroad 
cut, near south of East Rock. The figure is here reproduced 
Dp == —— x 3 ms 
- Section of stratified drift, A C D, and later unconformable 
Champlain deposits, A C F E, Air Line Railroad cut. 
that the relation of the deposit to the stratified drift may be ap- 
preciated. The conclusion, explained on p. 180, that the white 
sands were washed and accumulated on the south shore of a 
great “Interior basin” occupying the Quinnipiac valley, ap- 
. to be the only reasonable one; and if so, this “ Interior 
in” continued to exist for a while after the flood and flood- 
depositions had reached their height, as an area of high water. 
Yet, as the bed is of very limited extent and the terrace forma- 
tion is generally free from Alluvian deposits, the time may 
have been only that of the latter part of the flood, prolonged after 
flood-deposition had ceased by the melting still going on to the 
north ; and the region of melting may have been north of the 
ead of the New Haven streams, since it is possible, as I show 
beyond, that the flood waters of the Connecticut and Farming- 
2 rivers overflowed into the New Haven region and bay. 
5. Conclusion.— While the height of the terrace-plain above 
the sea and its height above the flood-plain of the river, fail of 
monstrating that the New Haven region was below its pres- 
hi t d ippl ks, 0 ations 
having a s rd and ¢ ard slope. now is whether, in the hea 
ating producing the oslnjue laneation the inminw would conform to the for 
mer or the latter of these slopes. 
* The cant] £41 1, 
