
The SciencesAugust 19, 1905
The Construction of a Silvered Glass Telescope, Fifteen and a Half Inches in Aperture, and its use in Celestial Photography.—IV

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

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

American Association for the Advancement of Science
Meeting of 1879, at Saratoga Springs, N. Y

The Spectroscope and Its Revelations