Excerpt from Duty on Coal: Being a Few Facts Connected With the Coal Question, Which Will Furnish Matter for Thought to the Friends of American IndustryThree tons of coal, which one man can mine in ten hours, represent the labor power of a man for his lifetime. Why, then, should we not at once, and as largely as possible, utilize this great power of which we have such inexhaustible stores? Why not avail ourselves of the cooperation of the tens...
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