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      The Sciences

      The Construction of a Silvered Glass Telescope, Fifteen and a Half Inches in Aperture, and its use in Celestial Photography.—IV

      • By Henry Draper on August 19, 1905
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        Recent Articles by Henry Draper

        • The Construction of a Silvered Glass Telescope, Fifteen and a Half Inches in Aperture, and its use in Celestial Photography.—III
        • The Construction of a Silvered Glass Telescope, Fifteen and a Half Inches in Aperture, and its use in Celestial Photography.—I
        • The Nebula in Orion
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