Letter from the secretary of war, transmitting the report of the commission to examine and report upon the sutro tunnel, in Nevada - Softcover
Synopsis
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1872 Excerpt: ...Questions. Question No. 1. Value of bullion extracted from mines on the Comstock lode. Answer. Total amount of bullion extracted from this mine is $11,772,105 47. Question No. 2. Their present and probable future production. Answer. For the twelve months ending May 31, A. D. 1871, the average monthly yield of bullion was $288,285 25. For the months of June and July following the bullion production averaged $166,312. The future yield of bullion necessarily depends on the success of prospecting. At this writing indications are positively and decidedly against the hope that any twelve months in the future will nearly equal the production of the past year. Question No. 3. The geological and practical value of said tunnel as an exploring work. Answer. Geologically, science may derive information of value to students in that branch of learning, although the probabilities strongly favor the opinion that the same geological knowledge can be acquired more easily and at vastly less expense. Practically considered, after many years experience in mining--five of which have been exclusively devoted to the Comstock lode, in directing and superintending mining operations--being thus employed, opportunities were abundant to gain a knowledge of the formations and to study the nature of the various deposits that make up this lode. Also, to satisfactorily determine water-sources that have supplied the subterranean reservoirs met with in explorations along this river. The result of this experience dictates the follow conclusions: That the proposd adit known as the Sutro Tunnel is not now, and never will be, a necessity to the lode, either for prospecting purposes, ventilation, or for the economical handling of metal-bearing material, waste or debris or as a means of entry or e...
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