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Subject
- Assaying2
- Mines and mineral resources2
- American Smelting and Refining Company1
- Chicago and North Western Railway Company1
- Civil engineers1
- Collingwood, Cuthbert C.1
- Dakota Indians1
- Description and travel1
- Employees1
- Gold discoveries1
- Gold mines and mining1
- Great Britain. Admiralty1
- Great Britain. Patent Office1
- Indians of North America1
- Irish, Charles Wood, 1834-19041
- Irish, Ruth1
- Love, William, engineer1
- Mines (Weapons)1
- Minesweepers1
- Mining engineers1