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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)
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)
Douglass, AE. 1906. Physical Geography. Tempe Normal School. Tempe Normal School.