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Scientific American, Vol. 42, No. 24 (1880) (1880)
leaf 4
like proportion. As vision. But as another law of vision has been transgressed difficulties of this kind increase in proportion to the square trench upon the domain of the table microscope, but to meet in the instrument produced, the effect upon the eyes is yet requirements for which the. latter is… … The core, 8, is connected with a wire, R, with a lever of thirty inches focal length; after some time the astrono- Fig. 1.—HOLCOMBE’S ELECTRIC LIGHT APPARATUS. © 1880 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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