Lewis, Isabel Martin, b. 1881 · New York, Duffield & Company · leaf 1
THE 26-INCH EQUATORIAL OF THE UNITED STATES NAVAL OBSERVATORY WITH WHICH THE SATELLITES OF MARS WERE DISCOVERED IN 1877 Splendors of the Sky BY ISABEL MARTIN LEWIS, A.M. (Connected with the Nautical Almanac Officeof the U. S. Naval Observatory)
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.