HOCKING VALLEY. AO 
SECTION OF Rock ABOUT NELSONVILLE. 
Vertical scale, 1 inch to 52 feet. 
—— Ferruginous shale. 
20 to 20 Iron ore and limestone fossils. 
40 to 50 Ferruginous shale and sand-rock. 
5) 2 
a Black limestone. 
35 to 40 | Ferruginous shales. 
GISOSOO Iron ore, 
45 to 60 Sandstone and shaie. 
Tron ore and coal (Tron Point ore.) 
13 to 25 Shale. 
2to 5 Coal No. 7 (Bayley’s Run.) 
10 to 20 Shale. 
lto 5 Limestone—ore above. 
3 to 40 Shale and sand-roek. 
5 to 10 seesaw Calcareous ore. 
5 to | Shale. 
lto 44 Coal No. 6a. 
, 20 to 36 Shales. 
6 to 10 Great Vein coal, with iron ore above and below. 
20 to 25 Shale. 
Ate 8 Coal No. 5; fire-clay in places; shale. 
to Iron ore (‘‘ Baird’s ore.”’) 
15 to 35 Shales and sandstone. 
2to 3 Iron ore—blue carbonate. 
5 told Shale. 
Heavy fire-clay. 
40 to 55 Shale and sandstone. 
22 inch. ‘Drift ore’ (Haydenville.) 
Coal. 
25 to 35 Shale and sandstone. 
=} Blue caicareous ore... 
Sandstone and slate to bottom of exposure. 
45 
