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Triumphs and wonders of the 19th century, the true mirror of a phenomenal era, a volume of original, entertaining and instructive historic and descriptive writings, showing the many and marvellous achievements which distinguish an hundred years of material, intellectual, social and moral progress .. (1899)

Boyd, James Penny, 1836-1910 · Philadelphia, Pa., A. J. Holman & Co · leaf 608

An illustration from Triumphs and wonders of the 19th century, the true mirror of a phenomenal era, a volume of original, entertaining and instructive historic and descriptive writings, showing the many and marvellous achievements which distinguish an hundred years of material, intellectual, social and moral progress .., 1899, leaf 608
with the tents of speculators and geologistshas grown up a multitude of towns,, filled with thousands of people whoselabors are performed at a depth of nearly a mile under ground. Thousandsmore transport the ore to the mills, separate the copper from the rock, andcut timber for the mines ; while… … THE SERGEANT ROCK DRILL. This district is the only one in the United States where the man-enginehas been used ; but as the shafts were sunk deeper and deeper, it was foundthat even this method was not sufficiently rapid, and the men are now low-ered into the mines by cages or skips. A cage is…

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