Related Books
Language: en
Pages: 178
Pages: 178
Type: BOOK - Published: 1905 - Publisher:
Language: en
Pages: 36
Pages: 36
Type: BOOK - Published: 1873 - Publisher:
Language: en
Pages: 54
Pages: 54
Type: BOOK - Published: 1878 - Publisher:
Language: en
Pages: 30
Pages: 30
Type: BOOK - Published: 2017-12-18 - Publisher: Forgotten Books
Excerpt from The Copper Mines of Lake Superior Copper mining on Lake Superior commenced in 1845, about twenty-eight years since. Prior to this date copper had b
Language: en
Pages: 44
Pages: 44
Type: BOOK - Published: 2017-07-26 - Publisher: Forgotten Books
Excerpt from Copper Mining in Lake Superior There is a very generally received opinion that the copper in these beds occurs in Shoots. This does not appear to b