982 J. B. Elliott—Age of the Southern Appalachians. 
Art. XXX.—The Age of the Southern Appalachians ; by 
Jno. B. Exxiort, M.D., Professor Chemistry, University of 
the South, Sewanee, Tenn. 
Tue following paper is the result of several geological ex- 
cursions made during the past five years in the mountain 
regions of Tennessee, Georgia and the Carolinas. They were 
directed along the lines mapped out by Tuomey, Safford, 
Bradley and Kerr; and were undertaken with the desire of 
obtaining by personal observation sufficient data for an opinion 
concerning the geological age of this debatable region. 
e relative positions of the geological sections made during 
these excursions need explanation. a line be drawn from 
Cleveland, Tennessee, southeastward to Atlanta, Georgia, and 
from Atlanta, Ga., northeastward to Spartanburg, 5. U., 4 
triangular area will be outlined within which lie the plateau- 
into Georgia. Frog Mountain in Tennessee and the 
posin 
mass of lofty hills, between Cartersville and Allatoona, form 
the last conspicuous landmarks o 
Beginning again at Cesar’s Head, S. C., where the Blue 
Ridge enters the eastern extremity of our triangular area, this 
chain of mountains leads us southwestward into Georgia. +0 
the first portion of its course the mountain range trends west- 
ward forming the boundary line between the Carolinas. Tt 
then enters northeastern Georgia, forming the boundary line 
between Rabun and Townes Counties, from which point it 
traverses Georgia in a southwesterly direction to Jasper, 1” 
Pickens County, Ga. Along this latter portion of its course 
it forms the center of the water-shed between the streams that 
flow northwestwardly into the Oostanaula River and those that 
flow southeastwardly into the Etowah. Beyond Jasper ae 
chain fades away into the hills which represent the southern 
extension of the Smoky Mountains. The Smoky Mountains 
and the Blue Ridge thus run together in Georgia and offer 
short sections near and at their point of coalescence along which 
much can be learned that will throw light upon the relations 0F — 
these ranges in their more widely separated portions. 
