Prospecting locating and valuing mines :
a practical treatise for the use of prospectors investors and mining men generally : with an account of the principal minerals and country rocks, and deposits, locations and patents, the early development of mines, earthly mineral products, coal, gold gravels and gravel mining, measurement of water and artesian wells /
by R.H. Stretch.
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Item Link | Original Source |
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Full view | University of California |
Full view | University of Michigan |
Full view | University of California |
Full view | Harvard University |
Full view | Harvard University |