The Adolfo Stahl lectures in astronomy, delivered in San Francisco, California, in 1916-17 and 1917-18, under the auspices of the Astronomical Society of the Pacific (1919)
Astronomical Society of the Pacific, Aitken, Robert Grant, 1864-1951 · San Francisco Stanford University Press · leaf 30
PLATE II. Drawings of Jupiter by James E. Keeler. Upper: 1889, July 10^ 10 2™ P. S. T.Lower: 1890. Aug. 30^ 11 9™ P. S. T. The Solar Svstk\[ 5 motion amid be caused by the attractions of an undiscoveredplanet farther from the Sun than itself. They computed theposition of the undiscovered planet.…
Astronomy
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
