Report of the State Mineralogist . years. REDUCTION EQUIPMENT. A study of the development of practices and appliances in themetallurgy of quicksilver during the past 60 years shows the intimaterelations of such developments to the history of operations at NewAlmaden. In the earlier operations, the intermittent form of furnacewas utilized. These furnaces and their modus operandi are describedin detail by Goodyear,1 who observed them working in 1871 at New Goodyear, W. A., Examination of the Quicksilver Mines of California : Geol. Surv,Of Cal., Geol., vol. II, pp. 106, 119, 131-132, 1882. SANTA
Report of the State Mineralogist . years. REDUCTION EQUIPMENT. A study of the development of practices and appliances in themetallurgy of quicksilver during the past 60 years shows the intimaterelations of such developments to the history of operations at NewAlmaden. In the earlier operations, the intermittent form of furnacewas utilized. These furnaces and their modus operandi are describedin detail by Goodyear,1 who observed them working in 1871 at New Goodyear, W. A., Examination of the Quicksilver Mines of California : Geol. Surv,Of Cal., Geol., vol. II, pp. 106, 119, 131-132, 1882. SANTA CLARA COUNTY. 217 Almaden, Knoxville, and New Tdria. The most important item forwhich credit is due to the staff of the New Almaden mine was the devel-opment in 1875-1876, of the Hiittner-Scott fine-ore furnace (now gen-erally referred to as the Scott), by H. J. Hiittner, Robert Scott, andJ. B. Randol. For some years, the furnace equipment at the Hacienda (the namegiven to the community grouped about the reduction plant) included. Photo No. 20. Cottrell Dust Precipitator, or Hot Treater (concrete chamberat left), and condensers connected with Herreschoff Furnace, at SenatorMine of New Almaden Company, Santa Clara County. Photo by W. two Exeli coarse-ore furnaces of 12 tons capacity each; two Scottfurnaces for granzita (medium ore) of 36 tons and 18 tons capacity,respectively; and two Scott furnaces for tierras (fine ore) of 36 tonsand 24 tons capacity. In the latter part of 1917, these were all torndown, except the Exelis, and treated for their absorbed soil and gravel under the site of the old intermittent furnaces and 218 MINES AND MINERAL RESOURCES. of the Seotts was excavated to bedrock, a depth of 30 feet, and runthrough a washing plant for recovery of the metallic quicksilver con-tained. An important yield of metal was obtained from this the Senator mine, in 1917, a Herreschoff multiple-hearth furnace,mechanically rabbled, was handli
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectminesandmineralresou
