THE LOWER COAL MEASURES. 195 
FIGURE XX 
<a AT ROCK WiLL MINE, ROBBINSVILLE . 
Scale ISft. =fineh 
| Soudstowe , Lowes Free pot’ nig stench 
(alate Muddbe Kitbounix as ates , 
(126 of Tuscarawas Vol 2) 
| Somdstone awd Skvales obi wenlke 
Coat, Lower Katbouniad’ orostn tie Lei yy Vee — 
(Lectouve. Seama)(N25 of Tuse: Valley) — 
| Kitt IOLA Shales with ore vodules = 
mieauelare See a Rye ces Ma A peat a) meal des Be ens 
| Coal,Uppex Clarion (Caufield Canal ge : 
ae } ee, 
Wee - Clay __-___-_.--.------------ \\\ \\\\ 
erin TRS ce NITES gS Pan Uy. 5 
Dia) chess ee ee ues 
Oa _- ee 
- 
eee ii ei ia ia ia es eas ee 
