Lowell, Percival, 1855-1916 · New York, The Macmillan company · leaf 69
there-fore white. The great nebula in Andromeda was oneof the first in which this was recognized; and the per-ception was pregnant, for no nebula defies resolutionmore determinedly than it. We may, therefore, infer 46 THE EVOLUTION OF WORLDS that it is not made up of stars, certainly big enough… … Nebula N. G. C. 1499 Persei — after Roberts. spectrum. But he forgot that here no such pressurecould exist. A nebula of compressed gas could nothave an irregular form and would have, in the case ofthe Andromeda nebula, a mass so enormous as to pre-clude supposition. Continuity of spectrum here…
Cosmogony
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