On the construction of a silvered glass telescope, fifteen and a half inches in aperture, and its use in celestial photography Draper, Henry, 1837-1882 creator text book Washington Smithsonian institution 1864 1864
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ENG Smithsonian institution publication 180. Astronomical photography Astronomy Reflecting telescopes Q11 .S68 vol. 14 Smithsonian contributions to knowledge, v. 14, art. 4 Smithsonian publication, 180 https://www.biodiversitylibrary.org/bibliography/32724 3317957 s13000064 10.5962/bhl.title.32724 DLC/ICU