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Scientific American, Vol. 18, No. 12 (March 1868) (1868)

leaf 4

An illustration from Scientific American, Vol. 18, No. 12 (March 1868), 1868, leaf 4
heel" This last example, I contend, furnishes the correct answer Philadelphia, Pa. " turn on its own axis twice," printing twice, in going once to the question at issue. The pointer makes two revolutions, but not for the reason round a cylinder ot the same size. Any body can try it, by The… … round the fixed article, and then those who advocate the one very plain one, thatitfretsmetosee sensible mcE differ upon \ where a given point can be reached by four routes,—for exam- revolution arc beaten, the dualists winning, I present the it. ple, a direct straight road, down a valley, over a…

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