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line”; Knowledge , London, 1903, p. 229.
[9] R. S. Proc. , xv., 1867, p. 256.
[10] Acad. des Sc. , Paris; C. R. , lxvii.,
1868, p. 121.
13. THE MOON AND PLANETS.
The Moon .–Telescopic discoveries about
the moon commence with Galileo’s discov-
ery that her surface has mountains and val-
leys, like the earth. He also found that,
490
