472 Scientific Intelligence. 
counties—1200 to 2000 feet above the sea-level—is made b 
which is called Pocono Mountain. The rocks of the plateau are 
nearly horizontal, as in the corresponding plateau of the —, 
Mountain region to the northeast. A map accompany 
Report, by Professor Lesley, represents the Catskill Sountain 
escarpment as continued, though with ay height, in the 
escarpment through Pike County, and then with increase a a 
vation again, through Monroe Ooanty along Poaerto Platea 
Mountain, about 2000 feet in elevation, from which the base 
southward falls off precipitously 1200 to 1300 feet. Pike County, 
over its higher parts, is covered with rocks of the Catskill gros 
The Kittatinny Mountain, consisting of Devonian and Siluri 
Ew down to the Hudson River slates, extends ae the cant 
of the ac bop over the region was small, and Caxaried practi- 
i i ee. 
Delaware River flows over an old river channel silted up to a 
depth of perhaps 100 feet.” Other buried valleys are the Strouds- 
Bro 
burg and Flat ok. In the case of i southern branch of the 
Stroudsbur ‘g, “the rapid narrowing up and. disappearance of this 
buried valley is eaiedons with the “disappear ance of the Terminal 
Moraine which spreads over the vall we er Frantz’s Creek. 
show that hie direct pat action of the glacier over the so ft 
there are “also post-glacial rock-cuts” as in the new channel of 
Wallenpaupack Cree k, ca Blooming Grove Creek, Shohola Creek, 
Sawkill River, and o ther 
The larger ‘part of Mr White’s Report is occupied with the 
stratigraphy of the counties and of part of the adjoining Carbon 
County to Mauch Chunk. In the course of the descriptions it is 
stated that while the ee of the Catskill series was found by 
the author, as before reported, to be 1530 feet on the northern 
-siomeaetd of Wa fee tek} ; in Pike onuty, ne ne a“ tht ox it is 
eget of the Upper Silurian over the Hudson River shale or 
op of the Lower Silurian, is spoken of “as finely shown at a cut 
