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<p>Book digitized by Google and uploaded to the Internet Archive by user tpb.
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<br>Subjects: productive; veins; fathoms; chert; beds; vein; mineral; limestone; plate; deposition; principal bearing; mineral veins; bearing beds; ten fathoms; red beds; public domain; north vein; productive floats; main sets; sun vein</div>
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Lonsdale Bradley</div>
Internet Archive identifier