Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
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Transcription
Sunday Sep. 23 - 1928
Wea. TUES. MARCH 2, 1909 Ther.
Mississippi for orientation are the then
bedded is beneath the Highgate Shales down to
the heavy bedded Milton dolomite. This change
is due to one now seeing the thin beds call the
arey down to the Milton. In the lower part of than
joints of thick bedded local quartz its.
The Milton dist. in must be added to the
Lower C. Therefore at Highgate gorge all
the Mid. C, and mostly the Upper C is out.
In fact I am not certain how any Up. C. here
at all. All maybe Ozarkian.
Near the Canadian border the Mid.
Ord. comes south for several miles between the
Mississippi and the Sciota. It is here in
the Mid. Ord. that Keith found and I
collected the large fragmentary trilobites that
resemble those over the younger than
Georgia. It pinches out to the south in
about 2 to 4 miles, and swells out as a part
of series to the north about Mystic, and to
the north.
Later turned out to be wrong