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cross-section from "Practical Gold-Mining: a comprehensive treatise on ... gold-bearing gravels, rocks and ores, and the methods by which the gold is extracted ... With ... plates, etc. [With a bibliography.]"

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cross-section from "Practical Gold-Mining: a comprehensive treatise on ... gold-bearing gravels, rocks and ores, and the methods by which the gold is extracted ... With ... plates, etc. [With a bibliography.]"

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This image has been taken from scan 000307 from "Practical Gold-Mining: a comprehensive treatise on ... gold-bearing gravels, rocks and ores, and the methods by which the gold is extracted ... With ... plates, etc. [With a bibliography.]". The title and subject terms of this image have been generated from tags, created by users of the British Library's flickr photostream.

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1889
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British Library
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