152 
The Americati Geologist. 
March, 1900 
26 2,250 At this depth the well is re- 
ported to have reached 
the Trenton limestone. 
Dr. Edward Orton stated 
that in the Monroe well 
the Trenton limestone 
was reached at the above 
depth, and 120 feet deeper 
'"a vigorous gas vein was 
struck, the rock pressure 
of which reached the 
amazing figure of 1,525 
pounds to the square 
inch."* 
Trenton 
Diagrammatic Section of the Talmage Well. 
DEPTH, thickness. FORMATION. 
. 
146' 
Salina shale. 
146' 
334' 
Niagara limestone. 
480' 
140' 
Clinton shale. 
620 ' 
705' 
Medina sandstone. 
1325' 
340' 
Oswego sandstone. 
1665' 
585' 
Hudson and Utica shale. 
2250' 
? Trenton limestone. 
*Bull. Geol. Soc. America, vol. g, 1898, p. 95. 
