Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Phosphate rock of Town.
Beechm again the age
of this rock at Cridwin.
The species are Heteropoda.
Modern heteropods are pelagic
and have phosphate shells.
The animals in dying drop
to the depths and their
water dissolve out the
Carbonate of lime and leave
the phosphate of lime as
a phosphate [illegible] mud which
fills the shell at lower
cent of them.