Scope and Contents This folder contains a contract concerning Mammoth Mining Company, 1882; an agreement of employment, 1882; an agreement of sales agent rights between William H. Bowers and Griffith & Wedge Machinery Company, 1883; a bid for 20 Stamp Dry Crushing Mill, 1883; and a stock certificate for Mining and Metallurgical Machinery Company.

Scope and Contents From the Collection: The William H. Bowers papers (1875-1979) contain materials relating to William H. Bowers (1841-1892), a man well known in the mining and metallurgic circles of the last half of the nineteenth century. The bulk of the collection consists of bids, contracts, and agreements, contained in folder 1, concerning Bowers' work with various mining companies, as well as original patents for his inventions and improvements which can be found in folder 3. A memorandum concerning the specifications for a 10...

Scope and Contents This folder contains an Improvement in Air-Pumps patent, 1875; an Improvement in Check-Valves patent, 1875; an Improvement in Ice-Machines patent, 1875; a Calcining and Chloridizing Furnace patent, 1885; and a Crushing-Roll patent, 1884.

Scope and Contents From the Collection: The William H. Bowers papers (1875-1979) contain materials relating to William H. Bowers (1841-1892), a man well known in the mining and metallurgic circles of the last half of the nineteenth century. The bulk of the collection consists of bids, contracts, and agreements, contained in folder 1, concerning Bowers' work with various mining companies, as well as original patents for his inventions and improvements which can be found in folder 3. A memorandum concerning the specifications for a 10...

Scope and Contents From the Collection: The William H. Bowers papers (1875-1979) contain materials relating to William H. Bowers (1841-1892), a man well known in the mining and metallurgic circles of the last half of the nineteenth century. The bulk of the collection consists of bids, contracts, and agreements, contained in folder 1, concerning Bowers' work with various mining companies, as well as original patents for his inventions and improvements which can be found in folder 3. A memorandum concerning the specifications for a 10...