Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
green shales at the top of the Richmond or
well developed at Clinton Wood and to the
south east to Hamilton and Niagara Falls.
It is probable that these shales were never
developed in the Manitoulinis or at least
in that their amount was once eroded away.
Bell states that the dark of the red
Richmondian is seen on Cable Head. There
about 30 ft.
As I did not see contact between
the Richmondian and Clinton the exact
nature of these upper rock beds is not
yet known to me. [See Aug. 13 more
than contact is described. Nor red his
here or in Manitoulinis].