Biblio

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Journal Article
Douglass, AE. 1915. “An Optical Photograph”. The Astrophysical Journal XLI (No. 3). The Astrophysical Journal.
PDF icon Douglass, AE_An Optical Photograph_1915.pdf (13.21 MB)
Douglass, AE. 1919. “An Automatic Optical Photograph, Abstract”. Publications Of The Astronomical Society Of The Pacific. Publications Of The Astronomical Society Of The Pacific.
PDF icon Douglass, AE_An Automatic Optical Photograph_1919.pdf (1.21 MB)