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THE NEW YORK PUBLIC LIBRARY

ASTOR, LENOx Ant,
Thucon Foundations.

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31 Landeilo Flags. Caradoc Sandstone. Wenlock Limestone. Ludlow Rock».Flags-Marls-Limestones-Sandstones & Conglomerate. -(Dudley) —/ ‘~~→\–~~—” Lower Silurian Rocks.Upper Silurian Rocks.Old Red Sandstone Series of Murchison.

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raults in the coal formation near wewcastle on syne Buddle.

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Section shewing the disposition of the metalliferous Veins near Redruth in Cornwall. R. Thomas.

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