Prospecting, Locating and Valuing Mines: A Practical Treatise for the Use of Prospectors, Investors and Mining Men, Generally; With an Account of the ... and Patents; The Early Development of Mines - Hardcover

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Excerpt from 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; Ore Deposits; Locations and Patents; The Early Development of Mines; Earthy Mineral Products; Coal; Gold Gra

It takes just as deep a shaft to Open a piece of ground 500 ft. Long as if it were but the cost of sinking and pumping, and all expenses of corporate management will be four times as great per square foot of area developed in one case as in the other, and this difference may do away with the possibility of dividends or even the recovery of the invested capital.

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