Three Rare Comstock Mining Publications: Mine Ventilation, Bonanza Ores, & 1882 Becker Summary

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Three Rare Comstock Mining Publications: Mine Ventilation, Bonanza Ores, & 1882 Becker Summary
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This item SOLD at 2018 Mar 17 @ 15:46UTC-7 : PDT/MST
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1) Rare Report on Comstock Mine Ventilation. University of Nevada Bulletin, Oct. 1, 1909. "The Ventilating-System at the Comstock Mines, Nevada" by George J. Young, a mining professor at UNR. A Paper Presented to the American Institute of Mining Engineers. Approx. 50 pages long. Soft cover, binding a little loose but intact. 9" x 6" Discusses variables such as the temperature, humidity, air velocity, and various ventilating systems present in the Union, Ophir, Gould & Curry, Savage, Sutro Tunnel, Hale & Norcross, and other Comstock mines. Many tables and illustrations through-out. Last section even includes results of blood testing they completed on Comstock miners! This booklet contains rare and unusual data for a very important aspect of working underground and miner safety. Essential for a Comstock or Nevada mining library. 2) A Summary of the Geology of the Comstock Lode and the Washoe District by George F. Becker. 40 pp. with a geological map of Virginia City and other diagrams. This appears to predate the official release, as there is a footnote stating that it is almost complete. It is unclear what publication this summary was taken out of. Some toning. 11 x 7.75" 3) "Bonanza Ores of the Comstock Lode, Virginia City, Nevada" by Edson S. Bastin. Dept. of the Interior, USGS, Bulletin 735-C, published 1922. 9 x5.75" Stapled binding. 22pp with 9 illustrations. Discussion of microscopic details for low-grade deep ores, shallow bonanza ores, ores from 1,000-2,500 feet, mine waters, and more. Date: Location: Virginia City, Nevada HWAC# 60370