16 
ECONOMIC GEOLOGY OF AMITY QUADRANGLE, 1'A. 
On the Moses Smith farm, in Amwell Township, one-fourth mile 
northwest of Bissell, a diamond-drill hole was once sunk to the Pitts- 
burg coal, and the record shows a good section of the Monongahela and 
part of the Washington formation. This is the best detailed section 
of the rocks available, and is as follows: 
Record of diamond-drill hole naif Bissell. 
Washington formation 
Monongahela formation: 
Coal, Wayncsburg 
Sandstone 
Limestone I Waynesburgo) 
Shale, blue 
Limestone 
Shale, blue.. . 
Shale, sandy . 
Limestone 
Shale. .light... 
Limestone.. . 
Shale, light f(Benwood limestone) 
Sandstone 
Limestone . 
Shale, light 
Limestone. 
Shale, light 
Limestone. 
Shale, gray 
Shale, sandy 
Sandstone, gray 
Shale, light 
Shale, dark, sandy. . 
Limestone ( Fishpol ) 
Shale, light 
Limestone 
Shale, light 
Shale, sandy 
Sandstone, gray 
slate, black 
Slate, black 
Coal 
Slate, black . 
Coal 
Slate, black. 
Fire clay . . . 
Slate, black. 
Coal 
Slate 
Coal 
Slate, bottom . . . 
Limestone. 
Pittsburg coal 
Thickness. 
Depth. 
Ft. 
in. 
Ft. in. 
154 
154 
6 
160 
11 
171 
it; 
l 
191 
f 6 
197 
12 
209 
20 
22'. 1 
5 
234 
15 
249 
7 
256 
10 
266 
16 
282 
2 
284 
, r ) 
• 
289 
9 
298 
7 
305 
\ 39 
344 
1 
348 
8 
356 
9 
365 
4 
369 
27 
396 
32 
128 
•1 
432 
4 
136 
9 
1 15 
19 
464 
7 
471 
2 
473 
•1 
2 
474 2 
1 
4 
4 
1 
4 
5 
186 3 
9 
6 
1 
3 
l 5 
10 
11 
487 2 
a Identifications in parentheses are supplied by the writer. 
