On the Construction of a Silvered Glass Telescope
Fifteen and a half inches in aperture, and its use in celestial photography
by Draper, Henry
Language: en · 301 downloads on Project Gutenberg
AstronomyAstronomical photographyReflecting telescopesQB
In: Category: Science - Physics · Category: Engineering & Technology
Public-domain ebook sourced from Project Gutenberg #53542.