Lowell, Percival, "Disappearance of the South Polar Cap of Mars in 1894", 1903
Percival Lowell's draft regarding the reporting of the disappearance of the southern Martian polar cap in 1894.
Berliner Tageblatt, "Die Marsfanäle", 1907
Short article on Mars signals in the Berliner Tageblatt.
Lowell, Percival, "Life in Mars - Professor Lowell's Defence of His Theories", 1910-03-26
Percival Lowell's article in the Daily Mail of London defending his various theories.
Lowell, Percival, "Planets and their Satellite Systems", 1909-08
Percival Lowell's article on planets and the satellites (moons) that orbit them in Astronomische Nachrichten.
Lowell, Percival, "Meteorites and the Genesis of the Solar System", 1909-03-04
Percival Lowell's abstract on the relationship between meteorites and the solar system for the New York Times.
Lowell, Percival, "Mr. Campbell's Compliment to the Lowell Observatory", 1908-10-15
Percival Lowell's comments on Mr. Campbell's compliment regarding Lowell Observatory's star charts.
Lowell, Percival, "The Presence of Water Vapor in the Atmosphere of Mars", 1908-04-08
Percival Lowell's letter to the editor of "Nature" regarding water vapor in the Martian atmosphere. Also appears in the German Publication "Archiv…
Slipher, E. C., The Giant Planets and their Atmospheres, 1935 #92., 1935
The Giant Planets and their Atmospheres, 1935 #92. Excerpts, Notes, and Papers..
Slipher, E. C., Observation Notes - Mars, Jupiter and Saturn, 1952
Observational notes of Mars, Jupiter, and Saturn.
Slipher, E. C., Observation Notes - Mars, Jupiter and Saturn, 1950
atom, dcmes-xml, json, omeka-xml, rss2