The heavens above: a popular handbook of astronomy (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908 · New York, Chicago, Potter, Ainsworth, & Co. · leaf 252
Fig. 256. aspect of one of the cusps, which Schroter noticed at times,and which he attributed to the shadow of a mountain,estimated to be ten or twelve miles high. Fig. 257 shows 230 ASTRONOMY. this mountain near the upper cusp, as Schroter believed hesaw it in the year 1800. By watching certain…
Astronomy
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
