Biblio

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1907
Douglass, AE. 1907. Boating Down The Colorado. University Of Arizona Monthly 8 (No. 1). University Of Arizona Monthly.
PDF icon Douglass, AE_Boating Down the Colorado_1907.pdf (5.37 MB)
Douglass, AE. 1907. The Illusions Of Vision And The Canals Of Mars. Popular Science Monthly. Popular Science Monthly.
PDF icon Douglass, AE_The Illusions of Vision and the Canals of Mars_1907.pdf (11.87 MB)
Douglass, AE. 1907. Is Mars Inhabited?. The Harvard Illustrated Magazine Vol. VIII (No. 6). The Harvard Illustrated Magazine.
PDF icon Douglass, AE_ Is Mars Inhabited_1907.pdf (2.93 MB)
1919
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)