Subjects: Photometry - Digital Collections - National Library of Medicine Search Results

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1. On the photometric comparison of light of different colors

Author(s):: Rood, Ogden N. (Ogden Nicholas), 1831-1902, author
Publication:: [New Haven?] : [publisher not identified], [1878?]
Subject(s):: Photometry
Color

2. On the cheapest form of light: from studies at the Allegheny observatory

Author(s):: Langley, S. P. (Samuel Pierpont), 1834-1906, author
Very, Frank W. (Frank Washington), 1852-1927, author
Publication:: [New Haven?] : [publisher not identified], [1890?]
Subject(s):: Luminescent Measurements
Photometry
Fireflies

3. Energy and vision

Author(s):: Langley, S. P. (Samuel Pierpont), 1834-1906, author
Publication:: [New Haven?] : [publisher not identified], [1888?]
Subject(s):: Light
Photometry
Vision, Ocular