LIBROS DEL AUTOR: jmwest

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  • How to Mine and Prospect for Placer Gold
    Depart U. S. Department of the Interior / Depart USDepartment of the Interior / J. M. West / JMWest
    Increased leisure time and increased interest in the out-of-doors is leading more and more families to experiment with placer mining of gold, and sometimes even to going on into small-scale production. This book supplies basic information on areas of occurrence, equipment needed, prospecting, sampling, mining, and regulations concerning the possession and sale of gold. Select...
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    15,31 €