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Scientific American, Vol. 81, No. 22 (November 1899) (1899)

leaf 3

An illustration from Scientific American, Vol. 81, No. 22 (November 1899), 1899, leaf 3
ls with vertical axes are in contact with the like a railroad semaphore, directly across the slot wheel, and then to revolve the apparatus. opening, completely hiding the time announcement vertical collar and prevent lateral motion. This de- It is evident that the observer, wherever situated.… … and a bearing can be taken from it and a cou rse steered the false time on the box. Its adoption does not call to it with absolute certainty when it is once picked for the abandonment of any part of the present box ROJiES SHOALS LIGHTHOUSE, NEW TORE HARBOR. © 1899 SCIENTIFIC AMERICAN, INC.

Coyote · Patents · Exposition · Moth · Apparatus · East river · Vienna collection · South africa · Years ago · Gypsy moth · Fourth order · Post office · Ball bearings · Large number · Scientific American

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