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    encies for slaughter31. New metals, chemicals, and elements h
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    encies for slaughter31. New metals, chemicals, and elements h

     8.82K  views
    d from the standpoint of inventive progress, the first half of th
    0:06

    d from the standpoint of inventive progress, the first half of th

     8.81K  views
    eteenth century had passed very profita
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    eteenth century had passed very profita

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    e credited to statesman, warrior26, or creative writer of the same
    0:06

    e credited to statesman, warrior26, or creative writer of the same

     8.8K  views
    actly four decades of steam navigation on American waters. Railways were growing a
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    actly four decades of steam navigation on American waters. Railways were growing a

     8.81K  views
    he rate of nearly one thousand miles annually27. Gas had become familiar
    0:07

    he rate of nearly one thousand miles annually27. Gas had become familiar

     8.81K  views
    ans of illumination in large cities. Looms28 and tools and printing-presses were everyw
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    ans of illumination in large cities. Looms28 and tools and printing-presses were everyw

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    re being liberated29 from the slow toil of man-power. The
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    re being liberated29 from the slow toil of man-power. The

     8.81K  views
    st photographs had been taken. Chloroform, nitrous oxide30 gas, and ether had been place
    0:07

    st photographs had been taken. Chloroform, nitrous oxide30 gas, and ether had been place

     8.85K  views
    service of the physician in saving life, and the revolver, guncotton, and nitroglycerine adde
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    service of the physician in saving life, and the revolver, guncotton, and nitroglycerine adde

     8.81K  views