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Transcription
34.
113 A
Lang Smith, 1/2 mi. SE of Chicago, in
St. Margt road.
5 ft. Clinton. Massive basal part + calcite
1 ft thin bedded layer,
5 ft. clayey rock, like Mad. below, but softer.
5 1/2 ft. Madison, slightly harder than above.
12 ft. After Rock.
1 ft. Great Coal bed, in places forming
a hard b. bed. Columaria halli.
Streptelasma rusticum + other
Richmond fossils.
16 1/2 ft)
Below coal bed just described
are various thin blue limestone
beds with Labeckia diversis
+ Calospe cia cribriformis. One
thier with Leperditia calcigena.
The levels at which these beds occur
have not been recorded
1 1/2 ft. Dense blue l. with Leperditia
caecigena, small garterpods
and Labeckia diversis.
40 feet of Lower Madison. Base not
seen here.
The Orthus lynx bed should occur
about 27 feet lower down.
114
35
W. D. Miles.
Black slate.
5 ft. Clinton. E of house is Clinton,
chert on the road side.
The 5 feet of Clinton are found
400 ft S of his house, in S.
side of creek crossing.
4 feet of clay rock, spalling, On
the lower part occurs Tetradium
Where Tetradium is common the
rock becomes hard as at New
Hope.
2 ft. poorly exposed.
1 ft hard rock.
4 ft poorly exposed.
4 ft hard clay rock.