138 
The American Geologist. 
March, 1900 
6 117-125 Mainly bluish shale and 
ss., with some chips of 
Trenton limestone and 
others of redish quartzose 
ss. Gravel. Drift 
7 125-140 Blue argillaceous shale 
clearly Hudson. Hudson 
8 206 Clear blue argillaceous 
shale; no effervescence in 
cold HCl. Hudson 
9 350 Black argillaceous shale 
with brown streak: strong 
effervescence in cold HCl. Utica shale 
10 450 Not so black as No. g. Ef- 
fervesces in cold HCl. Utica shale 
11 550 Black argillaceous shale. 
Effervesces in cold HCl. Utica shale 
12 600 Bluish black argillaceous 
shale with whitish streaks. 
Fair effervescence in cold 
• HCl. Utica shale 
13 630 Ditto. Utica shale 
14 650 Black argillaceous shales 
mixed with chips of lime- 
stone. The top of the 
Trenton limestone. Trenton 
15 658 Chips of mainly blue lime- 
stone; some black shale. Trenton 
16 ' 665 Dark gray to bluish lime- 
stone. Crinoid segments 
in larger chips. "Gas." Trenton 
17 680 Ditto. Trenton 
18 705 Light gray limestone. Very 
strong effervescence in 
cold HCl. Trenton 
19 715 Ditto with fragments of 
Brachiopods and Crinoid 
segments. "Gas at 725 
ft." Trenton 
20 735 Light gray very fine chips 
which effervesce very 
strongly in cold HCl. Trenton 
21 740 Ditto with some chips of 
black shale. Trenton 
