Practical gold-mining: a comprehensive treatise on the origin and occurrence of gold-bearing gravels rocks and ores and the methods by which the gold is extracted. With 8 Plates and 271 Engravings in the Text.
Lock, Warnford Charles G.:
Published by London, E. & F. N. Spon, 1889
Language: English
Condition: Gut
From Antiquariat Buchseite, Purkersdorf, Austria
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