Astronomy; the science of the heavenly bodies (1922)
Todd, David P. (David Peck), 1855-1939 · New York, P.F. Collier & son company · leaf 180
The Sun's Disk. The view shows the "rice grain" structure of the photosphere and brilliant calcium flocculi. (PhotOj Yerkes Observatory.) The Lunar Surface Visible During a Total Eclipse of the Moon, February 8, 1906. (Photo, Yerkes Observatory.)
Astronomy
Internet Archive · The Library of Congress · Public domain (published before 1931). Free to use for anything.
