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<p>Book digitized by Google and uploaded to the Internet Archive by user tpb.
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<br>Subjects: rocks; taconic; rock; limestone; silurian; veins; lower; slates; quartz; vein; lower silurian; taconic system; hudson river; north carolina; taconic rocks; lower taconic; surface marked; blue ridge; ventral valve; thin bedded</div>
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Ebenezer Emmons</div>
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