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Author

Henry Draper

1 free book by Henry Draper, free to read online. Chapter 1 of any book is free, no account needed.

Writes aboutReflecting telescopesAstronomyAstronomical photography
Cover of On the Construction of a Silvered Glass Telescope Fifteen and a half inches in aperture, and its use in celestial photography

On the Construction of a Silvered Glass Telescope Fifteen and a half inches in aperture, and its use in celestial photography

Henry Draper