. The universal assistant, and complete mechanic : containing over one million industrial facts, calculations, receipts, processes, trade secrets, rules, business forms, legal items, etc., in every occupation, from the household to the manufactory. g stock capable of transj^orting 1000 miners from the village ofSutro to the mines in 15 minutes. During the past years, nearly 3000 mine™\i&\e been employed in these mines, and hours have been consumed at eachshift in sending down the men In cages, a dozen or so at a time. Tlie mines on the Comstock lode, and all other mines in the district, araeom
. The universal assistant, and complete mechanic : containing over one million industrial facts, calculations, receipts, processes, trade secrets, rules, business forms, legal items, etc., in every occupation, from the household to the manufactory. g stock capable of transj^orting 1000 miners from the village ofSutro to the mines in 15 minutes. During the past years, nearly 3000 mine™\i&\e been employed in these mines, and hours have been consumed at eachshift in sending down the men In cages, a dozen or so at a time. Tlie mines on the Comstock lode, and all other mines in the district, araeomi)elled for all time, to pay the Tunnel Company $2 jier ton fore\eryton of ore extracted and sent to the mills for reduction. Tlie rates estab-lisfaed for transportation is 26 centa per ton per mile over the 4 miles q£ <U4 THK SUTRO TUNNEL. main tunnel, and 25 cents each way for persons. Ice, now sold to the miningcompanies at ^20 pet ton, can be supplied in unlimited quantities by theTunnel Company from its ponds on the Carson river, at less than Si pei*ton. Cordwood, now sold m Virginia city at .Sl2 per cord, can be passedthrough the tunnel, elevated nearly 2000 ft. through the main shaft, naAlaid down for $S per cord. nJK^ Fig. 8.—GEOLOGICAL Cross Sectiox of the CorrjfTRY fkom thip kxtrance OK THE SUTRO TCXXEL TO AX1> BEVOXD THE COMSTOCK |jOr>E; ALS6 THE Shafts on the Tunxel Line- ... The notable sanitary subserved by the tunnel has already dissipatedthe poisdnous gases in the lower drifts of the Savage mines, and jfowered thetemperature of the 2000 ft. level from 120° to i)0o Falir. A covered .< drain is to be constructed the entire length of the tunue^ (under therailT0.^d track) to form an outlet for the drainage of the mine. Much ofthe water in tlie workings stands at a temperature of 1G0° Fahr., and ifthis was passed through the tuiincl in An open channel, no liviug thingconld exist, owing to the hot, confined Vapor. It
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Keywords: ., bookcentury1800, bookdecade1870, booksubje, booksubjecttechnology
