Howe, Herbert A. (Herbert Alonzo), 1858-1926 · Meadville, Penna., Flood and Vincent · leaf 336
riginalnebula, will begin to cool off whenever his huge massbegins to liquefy. Such is the nebular hypothesis, briefly stated. Some The Nebulce. 329 years ago it was supposed that the retrograde motionsof the satellites of Uranus and Neptune, and the rapidmotion of the inner moon of Mars, which… … Objections. Fig. 143.—A Drawing of the Central Part of the Great Nebulain Orion. universe, investigating the nebulae, the stars, the earth, a broad inves-the moon, the planetary system, and finally the sun, tIsatlon-that they may give their mute testimony to the truth orfalsity of the nebular…
Astronomy
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