Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
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Transcription
Wea. SAT. NOV. 6, 1909 Ther.
Either this drl. is repeated Mallet or
it is the older type Cambrian. In other
words it is more Lower Cense and equivalent
to the Milton. I doubt if its thickness is
fudten from 20 ft. All of it dips E. and
flumps, N. The dip flats out from 20° on the
E., to 15° or even 10° on the W.
The drl. first appears half way up the hill
and to the top adds but little. Someone seems
to have slipped.
The dip is true when that reddish drl. is
around 10° - 15° E. These beds are often
from the overlying drl.