III · Science
A visual astronomer's photographic guide to the deep sky
Subjects
Observers' manuals · Astronomy · Amateurs' manuals · Astronomy, observers' manuals · Photography · Popular Science in Astronomy
Language
ENG
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![Cover of [William Wheeler Hubbell, authorized to apply for patents.] by United States. Congress. Senate. Committee on Patents](/img/cover/10200621-M.jpg)
