Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Cut out the section described in Clark's
Explanation of letter from one on page 10; the sec-
tion indicated A-A'. This is the 'Deep Button'
Schrothner section.
In the Silman quartzite Rutpyria has
been collected.