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Books by INternational Correspondence Schools Scranton Pa, Collier Engineer Company

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Placer mining: a hand-book for Klondike and other miners and prospectors, with introductory chapters regarding the recent gold discoveries in the Yukon ... the routes to the gold fields, outfit re
Placer mining: a hand-book for Klondike and other miners an…
By: INternational Correspondence Schools Scranton Pa, Collier Engineer Company
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