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Scientific American, Vol. 17, No. 6 (August 1867) (1867)

leaf 7

An illustration from Scientific American, Vol. 17, No. 6 (August 1867), 1867, leaf 7
of the chiaroscura, supply of air to the mines. Alluding to the well-known slips down over the metal top, and while resting its base upon the rich depth and transparency of the shadows, the perfect " Blowing Well," of Preston, in Lancashire, he states that the circular support, is steadied in place… … hundred and fifty horse-power. No cars were attached. Un- that the attempt to simply imitate the flight of birds is im- top. It has its advantages in giving excellent support to the der eighty-five pounds of steam the locomotive passed over practicable, but concludes that " man is endowed with…

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