140 
GEOLOGY CF NORTH CAROLINA. 
running his French Broad section across the State line to Warm Springs 
and a little beyond. In this section he makes the Paint Rock sandstones 
to be Chilhowie, or Potsdam, and the grits and conglomerates below 
and above Warm Springs to he Ocoee, or sub-Potsdam, and the limestone 
he refers to the Knox Dolomite, which is above the Potsdam. 
And Prof. Bradley of Knoxville University, has kindly furnished me 
within a few days, a manuscript copy of a paper which he proposes to 
publish soon, giving some conclusions from a recent study of the rocks of 
Cherokee and of the lower Tennessee and Nantehaleh sections of them. 
Extensively familiar already with the Primordial formations m other 
parts of the continent, and living in the midst of a region of Lower 
Silurian formations, which have been so well desciibed and mapped by 
Safford, and with whose characteristics he is familiar from his own explor- 
ations, Prof. B. is well qualified to attack this knotty problem from the 
only direction which offers any prospect of its solution. lie refers the 
conglomerates, sandstones and quartzytes and their associated slates, to 
the Primordial, (Ocoee and Chilhowie of Safford), and the limestones of 
Valley River to the Knox formation, regarding these beds as continua- 
tions, or folds of the same rocks in Tennessee and Georgia, basing his 
conclusions on stratigraphical and lithological considerations, having 
found no fossils. If Prof. B. is able to continue his investigations among 
these confused and complicated geological obscurities and to unravel the 
tangled skein of their history, he will doubtless render an eminent service 
to science as well as make an important contribution to the geology of 
North Carolina. 
If these identifications shall prove to he valid, they will carry not only 
this belt but the preceding, which lies along the line of the Blue Ridge ; 
since this belt connects itself directly with the slates and conglomerates 
of Tennessee through the large and peculiar body of epidotic and chloritic 
sandstones and the slates and conglomerates of the Yellow Mountains 
and along Elk River. And the King’s Mountain belt will probably follow, 
as this is almost certainly geologically indentical with the Sauratown and 
Pilot Mountain section, and the latter are almost continuous with the 
eastern fragments of the Blue Ridge belt in Surry county. But this 
conclusion will not involve the great midale and eastern belt6 which 
must still remain Huronian, until determined independently to belong to 
a later series ; both because they are widely separated from the others, 
and because they have lithological and stratigraphical characters of their 
own, which would prevent their following any determinations of horizon 
for the others, which should be based on these considerations alone. 
