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mining chinese gold milling

mining chinese gold milling

Here is an AncientGoldOreMillingProcess used inChinain the 1800s. We might use it again after WW3. At the time, 1890, the Author said “There is, of course, nothing for us to learn from this imperfect and rudimentarygold-extraction process described here, which is doubtless destined to disappear ere long, before the progress of scientificmining, now making itself slowly felt ...

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