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Transcription
N.D. Collinville, this 4½ mi. My
ford bridge - 1 mi. My thr
10½ ft up 2nd dim change from coarse
gritty arg. siltstone to
fine biddled clay shales above
54½ ft up above same D.in retusac.
25¾ft up, pure river clay with graptolites.
6½ ft up - Cyclonema fluctuosa
4½ ft interval, Plat. lgy & Septaria
at same levels;
N.W.
5 7 jacksoning 12 mi.
16 ½ ft Bridge
Siltwood
89 mi.