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Scientific American, Vol. 41, No. 24 (1879) (1879)

leaf 7

An illustration from Scientific American, Vol. 41, No. 24 (1879), 1879, leaf 7
fore it left the shed, as it was better for the defect to and the ear learns to detect the slightest variation in the intended t& replace, in so far as the manner of its locomo- be found out then rather than when the train was going at full speed. Unless the fire was properly constructed and to… … forward, and placed upon the was the result of one of two things, PRAUL’S TRACTION ENGINE, ground, there to remain while the It was either a deviation from what motor is carried forward one step, the builder intended, or a deviation when it is again lifted, andsoon. The inventor of this at high…

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