Davis and Wood.] 
390 
[Nov. 20, 
stage of most of the Highland streams was in general of conse- 
quent arrangement, the stream courses being taken in accordance 
with the deformations that had in early Jurassic time tilted and 
faulted the Triassic beds and the subjacent and adjacent crystal- 
lines, briefly outlined in paragraph 13. The reasons for this belief 
are drawn as much from the history of the Triassic in the Connecti- 
cut valley 1 as from New Jersey, and will not be considered here. 
Whatever the early stages were, it is very probable that in late 
Schooley time, when the land was worn low, the streams had lost 
many of their original courses in the process of mutual adjustment 
as explained by Lowl, and were thus more dependent on internal 
structure than on original deformation. The streams in their old 
age must have flowed along the strike of the soft beds for the 
greater part of their course, escaping to the sea by not infrequent 
transverse streams, some of which, like the Pequannock, 2 may have 
been located on ancient fault lines ; and to streams thus well estab- 
lished a special name should be applied, inasmuch as no one of 
the names now current is fairly applicable. They may be called 
streams of mature adjustment. 3 The old streams of the Schooley 
plain surely were of this kind. Most of them must have finally 
settled down on the softer beds, and therefore then as now there 
must have been streams in the Kittatinny and Musconetcong val- 
leys ; and these must have found outlet to the sea by transverse 
master streams, such as the Delaware. Thus many of our present 
streams may have had their antecedents in the Schooley cycle, from 
which they have descended by what we shall call “revival,” caused 
bj' massive elevation of the country, as will be further considered 
below. 
Whatever may have been the drainage of the Triassic portion of 
the old baselevel plain in the Schooley cycle does not now appear, 
for as has been indicated in the section on the geological date of 
the Schooley cycle, after this portion of the plain had been base- 
levelled, it was moderately depressed beneath the sea of Cretaceous 
time and buried in Cretaceous sediments. The stream courses of 
the Schooley cycle on the Triassic area were thus extinguished. 
This will be seen to be of importance when the development of the 
central plain in the next cycle is considered. 
1 Amer. Journ. Sci., XXXVII, 1889, 432. 2 Geol. N. J., 1886, 122. 
3 Nat. Geogr. Mag., 1 , 1889, 206. 
