To the moon and back in ninety days : a thrilling narrative of blended science and adventure (1922)
Brown, John Young, 1858-1921, Lunar Publishing Company. pbl · Providence, Kentucky : Lunar Publishing Company · leaf 246
FIG. 43. ASPECT OF MURUS RECTUS, OR THESTRAIGHT WALL. (Moreuxs A Day in the Moon, The Frederick A. Stokes Co.,N. Y., Publishers.) … FIG. 44. ENLARGED VIEW OF THE RAY SYSTEMABOUT TYCHO. This, the most extensive of the ray systems of the moon hasits center in Tycho. The rays of this system should be comparedwith those which have their centers in Copernicus, Kepler andAristarchus. (See Figs. 48 and 49). (Yerkes Observatory.)…
Astronomy
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