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Scientific American, Vol. 100, No. 9 (February 1909) (1909)

leaf 8

An illustration from Scientific American, Vol. 100, No. 9 (February 1909), 1909, leaf 8
tremendous squeeze (for I never shall shake it reader can understand it. ginning to end of the stroke, in spite of the neces- again) and said without intending in an almost rever- Competitors for the prize must comply with the fol- sary rise and fall of the outward end of the operating ential tone:… … petitor will be notified by the Editor that he has won continuous runners. Once started, the "Wels" sleigh the prize, and his essay will be published in the Scien- has great possibilities for speed. It is steered by The A-W motor sled. tific American. means of rearward extensions of both runners,…

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