On the construction of a silvered glass telescope : fifteen and a half inches in aperture, and its use in celestial photography / by Henry Draper. (Reprinted from vol xiv, "Smithsonian contributions to knowledge," 1864) ; and, On the modern reflecting telescope and the making and testing of optical mirrors, by George W. Ritchey

Date : 1904

Editeur / Publisher : Washington : Smithsonian Institution , 1904

Type : Livre / Book

Langue / Language : anglais / English

Draper, Henry (1837-1882) (Auteur / author)

Ritchey, George Willis (1864-1945) (Auteur / author)

Collection : Smithsonian contributions to knowledge / Washington : Smithsonian Institution , 1848-1916