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Scientific American, Vol. 49, No. 24 (December 1883) (1883)

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An illustration from Scientific American, Vol. 49, No. 24 (December 1883), 1883, leaf 0
the maneuver, and, on the pinion, T, that transmits the circular motion of the sleeve, other, that the fatigue of the astronomer interferes with the that portion of the instrument that carries the objective, and R. A strong toothed wheel that gears with a pinion makes accuracy of the observation.… … THE aBEAT EQUATOEIAL TELESCOPE OP THE PABIS OBSEBVATOBY. © 1883 SCIENTIFIC AMERICAN, INC

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