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Scientific American, Vol. 42, No. 19 (1880) (1880)

leaf 7

An illustration from Scientific American, Vol. 42, No. 19 (1880), 1880, leaf 7
and forms, was begun in Jersey City, axle, the pinion taking in a ratchet wheel provided with a The operation of removing the sediment and loose scale April 1, Acuteness of vision was from beneath the tubes of locomo- tested by means of printed cards tive boilers, when conducted in the placed at a… … shade from the skeins before .bim of the locomotive type. he picked three shades of blue, two It consists of two tubes, A B, of yellow, and one of red. He could provided with jet openings or tubes, : distinguish no difference, and the same thing happened to projecting pin that enters into the slots…

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