Technical Paper - Bureau of Mines
Author | : United States. Bureau of Mines |
Publisher | : |
Total Pages | : 1600 |
Release | : 1921 |
Genre | : Mines and mineral resources |
ISBN | : |
Download Recent Progress In The Thawing Of Frozen Gravel In Placor Mining By Charles Janin full books in PDF, epub, and Kindle. Read online free Recent Progress In The Thawing Of Frozen Gravel In Placor Mining By Charles Janin ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author | : United States. Bureau of Mines |
Publisher | : |
Total Pages | : 1600 |
Release | : 1921 |
Genre | : Mines and mineral resources |
ISBN | : |
Author | : Charles Freeman Jackson |
Publisher | : |
Total Pages | : 58 |
Release | : 1932 |
Genre | : Gold mines and mining |
ISBN | : |
Author | : Norman L. Wimmler |
Publisher | : |
Total Pages | : 248 |
Release | : 1927 |
Genre | : Gold mines and mining |
ISBN | : |
Author | : Clark C. Spence |
Publisher | : University of Illinois Press |
Total Pages | : 512 |
Release | : 1996 |
Genre | : Alaska |
ISBN | : 9780252022180 |
The Northern Gold Fleet is the story of how new gold-dredging technology was applied to the rich placers of the Far North from 1899 to the present, leading to mass production and economies of scale that made previously unprofitable resources profitable. The bucket-ladder dredge was a single, complex apparatus that rivaled ocean freighters in size. At once ugly, spectacular, and awesome, the dredges dug, classified materials, and performed gold-saving and tailing-disposal functions. A richly illustrated and comprehensive history. The Northern Gold Fleet is part environmental, part technological, part corporate, part labor, and part Alaskan in its thrust, offering a picture - both dazzling and absorbing - of how new technology simultaneously helped build the economy and lay waste the resources of Alaska.
Author | : |
Publisher | : |
Total Pages | : 902 |
Release | : 1922 |
Genre | : Electronic journals |
ISBN | : |
Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-1859. cf. Index to v. 1-120 of the Journal, p. [415]
Author | : California State Mining Bureau |
Publisher | : |
Total Pages | : 838 |
Release | : 1923 |
Genre | : Gold mines and mining |
ISBN | : |
Author | : California. Division of Mines and Geology |
Publisher | : |
Total Pages | : 906 |
Release | : 1922 |
Genre | : Geology |
ISBN | : |