612 TRANS. OF THE ACAD. OF SCIENCE. 
Remarks on the StRATIGRAPHICAL ARRANGEMENT OF THE 
Rocks or Kentucky, from the Catenipora escharoides 
horizon of the Upper Silurian Period, in Jefferson County, to 
the base of the productive Coal Measures in the eastern 
edge of Hancock County. By Sipney S. Lyon. 
Having had favorable opportunities of observing the rocks — 
composing the beds which separate the productive Coal 
Measures from the Upper Silurian beds of Kentucky, espe- 
cially in that portion of the State lying in a line due east 
from Owensboro, Davis County, to the outcrop of the Upper 
Silurian, in Nelson County, and the series forming the upper 
portion of the section, accompanying this paper, 1n all the 
counties in Kentucky which lie aoa Bory to the 
coal fields of Hancock, Davis, Henderson, Union, and Crit- 
tenden Counties, and its extension southwardly into the 
counties lying to the south and east of those enumerated, it 
is proposed to give a more detailed section of the rocks above 
alluded to than any heretofore made public. 
The line of country which would exhibit the necessary = 
tural sections from which the eS diagram cou 
be constructed, would begin at Louisville, Jefferson County, 
when the divisions of the diagram marked q, 7% 8, 4 % %™% 
and x, are developed and exposed ; thence to the southwest, 
toward Elizabethtown, Hardin County. Between Louis : 
and Elizabethtown the outcropping edges of the oc 
marked g and p would be passed over in ascending meen 
These masses present themselves on their eastern ae . 
the face of a terrace, on the summit of which ose 
considerable extent of table and gently undulating ai en 
eastern escarpment of this table land being notched an int 
in many places by the passage of creeks and branches, cu 
mass represented by o will be reached. 
