Author: Charles Freeman JacksonPublisher:
ISBN:
Category : Gold mines and mining
Languages : en
Pages : 60
Book Description
Small-scale Placer-mining Methods
Author: Charles Freeman JacksonPublisher:
ISBN:
Category : Gold mines and mining
Languages : en
Pages : 60
Book Description
Federal Placer-mining Laws and Regulations
Author: United States. Bureau of MinesPublisher:
ISBN:
Category : Hydraulic mining
Languages : en
Pages : 56
Book Description
Small-scale Placer-mining Methods
Author: Chas F. JacksonSmall-scale Placer-mining Methods
Author: Chas. F. JacksonPublisher:
ISBN:
Category : Gold mines and mining
Languages : en
Pages : 17
Book Description
Small-scale Placer Mines as a Source of Gold, Employment, and Livelihood in 1935
Author: Charles White MerrillPublisher:
ISBN:
Category : Economics
Languages : en
Pages : 100
Book Description
Small Scale Placer-mining Methods
Author: Charles F. JacksonPublisher:
ISBN:
Category : Gold mines and mining
Languages : en
Pages : 17
Book Description
Small-scale Placer-mining Methods
Author: Charles Freeman JacksonPublisher:
ISBN:
Category : Gold mines and mining
Languages : en
Pages : 58
Book Description
Hand-placer Mining Methods
Author: Publisher:
ISBN:
Category : Gold mines and mining
Languages : en
Pages : 20
Book Description
Describes hand placer mining methods suitable for small scale gold mining in Alaska.
Small Scale Methods of Placer Mining and Placer Mining Districts of Washington and Oregon
Author: Guy Ernest IngersollPublisher:
ISBN:
Category : Hydraulic mining
Languages : en
Pages : 59
Book Description
Mineral Technology and Output Per Man Studies
Author: National Research Project on Reemployment Opportunities and Recent Changes in Industrial Techniques (U.S.)Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 164
Book Description