%0 Magazine Article %D 1907 %T The Illusions of Vision and the Canals of Mars %A Douglass, A.E. %K astronomy %K canals %K Douglass %K illusions of vision %K mars %B Popular Science Monthly %V LXX %0 Journal Article %J The Harvard Illustrated Magazine %D 1907 %T Is Mars Inhabited? %A Douglass, A.E. %K Douglass %K mars %B The Harvard Illustrated Magazine %V Vol. VIII %N No. 6 %0 Magazine Article %D 1899 %T Mars. %A Douglass, A.E. %K astronomy %K Douglass %K mars %I Popular Astronomy %0 Generic %D 1896 %T Projections on the Terminator of Mars and Martian Meteorology %A Douglass, A.E. %K astronomy %K Douglass %K historic %K lowell %K mars %K meteorology %K observatory %K projections %K terminator %0 Journal Article %D 1895 %T A Cloud-Like Spot on the Terminator of Mars %A Douglass, A.E. %K Douglass %K mars %K spot %0 Journal Article %J Astronomy and Astrophysics %D 1894 %T The Polar Cap of Mars %A Douglass, A.E. %A Lowell, Percival %K astronomy %K Douglass %K mars %K polar cap %B Astronomy and Astrophysics