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• Colorado Historic Newspaper Collection: ⊞ The Evening Chronicle; August 11, 1892

At Mound City, in the Cripple Creek district, the cyanide process with the Argall improvements has been feeling its way to success all summer.
The Mound City plant, with capacity for ten tons per day, is now being enlarged to fifty tons. It has handled about 2,000 tons of Cripple Creek gold ores of all grades and conditions and has emerged from its experiments upon solid ground.
The cost of chemicals has been reduced to less than the average cost of roasting. In the Mound City and Florence plants roasting will be dispensed with, hence the new venture will be able to compete in the ore market with the chlorination plants, and will doubtless give the smelters a challenge on medium grade ores.

• Colorado Historic Newspaper Collection: ⊞ The Castle Rock Journal; November 21, 1894

• Colorado Historic Newspaper Collection: ⊞ Littleton Independent; July 5, 1895

• Hathi Trust Digital Library; Link to Page: ⊞ xxiv
• Hathi Trust Digital Library: ⊞ Proceedings of the Colorado Scientific Society 1894-1895-1896
• Google Books: ⊞ Proceedings of the Colorado Scientific Society 1894-1895-1896

• Hathi Trust Digital Library: ⊞ Direct to Page 58

Reduction Works - Cripple Creek:

Name: BRODIE GOLD REDUCTION CO.
Type: Cyanide
Capital: $200,00
President: James Muir, Glasgow, Scotland
Vice-President: George MacLeod
Secretary: John Q. McDonald
Treasurer:
Superintendent:
General Manager: John Q. McDonald
Manager:
Lessees:
Description: plant, 100 tons capacity.
Employes:
Contact:
Notes: mill at Mound City

• Hathi Trust Digital Library; Link to Page: ⊞ 473
• Hathi Trust Digital Library: ⊞ Colorado State Mining Directory, 1898

• Colorado Historic Newspaper Collection: ⊞ Morning Times, February 17, 1898

• Colorado Historic Newspaper Collection: ⊞ The Morning Times, May 1, 1898

• Colorado Historic Newspaper Collection: ⊞ The Morning Times, July 31, 1898

• Hathi Trust Digital Library: ⊞ Link to Page
• Hathi Trust Digital Library: ⊞ The Mineral industry. v.6 1897.

Mechanical Concentration in Connection with the Cyanide Process.—At the Brodie mill at Cripple Creek, the process was introduced in 1897 of leaching raw the telluride ore (crushed to 30-mesh), and afterward concentrating on Wilfley tables. The concentrates are roasted and leached again. The tailings from the second lixiviation are again passed over the concentrators, whereby 10 or 12 tons are reduced to one, and the concentrates are subjected once more to the cyanide solution.
It is claimed that an important additional saving has been effected in this manner, but I am disposed to think that the data as to this are misleading. Some of the coarse pellets of gold that have been subjected to the cyanide solution, practically without action upon them, maybe recovered from the tailings by gravity concentration; but finely-crushed ore containing its value in the form of brittle tellurite minerals appears ill-adapted to this kind of treatment.

• Hathi Trust Digital Library: ⊞ Link to Page
• Hathi Trust Digital Library: ⊞ The Mineral industry. v.6 1897.

BRODIE MILL WILL OPEN
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Mound City Concern Will Start Up Again.
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CAPACITY IS SIXTY TONS
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WILL AFFORD ANOTHER OUTLET FOR THE ORE OF THE GREAT GOLD CAMP.
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It was reliably reported last evening that, within a week, the old Brodie mill will be reopened, under entirely new management. Whether the mill will be leased or not, could not be learned, but no matter under what conditions the mill opens, there will be another outlet for the already congested condition of the ore market.
The Brodie mill has a capacity of 60 tons a day, and when it opens there will be no difficulty in filling it with ore, and the mill can run full blast without losing an hour.
The mill was one of the first in the district, and that it was closed, even temporarily, was surprising to all, and the news that it will again open will be hailed with delight by people who, at present, have no outlet for their ore.

• Colorado Historic Newspaper Collection: ⊞ Morning Times, July 23, 1899
• Colorado Historic Newspaper Collection: ⊞ Article

• Hathi Trust Digital Library: ⊞ Link to Page
• Hathi Trust Digital Library: ⊞ The Mineral industry. v.7 1898.

• Colorado Historic Newspaper Collection: ⊞ Morning Times, March 1, 1900

• Hathi Trust Digital Library; Link to Page: ⊞ 392
• Hathi Trust Digital Library: ⊞ United States Investor; Vol. 11 (Jan.-Jul. 1900)

• Colorado Historic Newspaper Collection: ⊞ Eagle County Times, April 7, 1900

• Internet Archive: ⊞ The Cripple Creek Times (New Year 1903)

Colorado Springs, Oct. 26.—Lessee Nelson and associates, who have secured a lease on the tailings of the old Brodie Mill, which was destroyed by fire some two years ago, and are treating this cast-off rock are now making much better than wages by receiving gross values of $22 to the ton.
The lessees are now trying a new experiment. When the great fire occurred the rock was roasted to a certain degree, and from repeated tests made in the last few weeks they are of the opinion that it can all be treated successfully by the cyanide process, and are now getting out a small shipment, which will be sent to one of the mills in the district to test their theories.
If successful the balance of the rock will be hauled to a near-by mill.

• Hathi Trust Digital Library; Link to Page: ⊞ 5
• Hathi Trust Digital Library: ⊞ PROFITS, Volume 4 (April 1904-March 1905)

At a banquet to celebrate the completion of the second unit of cyanide plant for the treatment of low grade dump ore at Stratton's Independence, Cripple Creek, Philip Argall gave a speech containing interesting reminiscences.
Eighteen years ago he commenced his connection with the cyanide process by going to Deadwood, South Dakota, in the interests of the owners of the MacArthur-Forrest patents. At this spot in the Black Hills a cyanide plant had been erected and had proved a failure at first, and advice was required.
His second trip was to what is now the Brodie mill at Cripple Creek, where the cyanide process was also a failure. In both these cases the ore was ground fine and could not be leached; this was in the days before slime agitators.
Nevertheless Mr. Argall was firmly convinced that cyanide treatment would be the most suitable for Cripple Creek ores, and by tongue and pen was persistent in his advocacy of its adoption. Indeed he then made a design for a treatment plant which was adopted 14 years later at Stratton's Independence.

• Internet Archive: ⊞ The Mining Magazine (January 1911; p34)