Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
"in the bluer shale or just at the
junction of the Clevel and shales.
The Cleveland shales are here
of a very black color, split into
thin plates and not more than
20 feet thick. Found no fossils.
Herder has gotten some coal remain from them. Every shot is pyrite, common as
Then come the Erie shales of
a bluish color with bands of imp-
pure limestone holding a fair quantity
of Georgian fossils (Cheney's) in
rather poor condition. The shale
break into very small pieces in the
horse and can readily be separated
from the black shale lying above.
Looked over Herder cabinet
and got some few specimens."