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The evolution of worlds (1909)

Lowell, Percival, 1855-1916 · New York, The Macmillan Company · leaf 186

An illustration from The evolution of worlds, 1909, leaf 186
ent constituents. In the larger planets Jupiter andSaturn we seem to see the heat, far as we are away.For the cherry hue they disclose between their brighterbelts proves to come from greater absorption there ofthe green and blue rays of the spectrum, indicating agreater depth of atmosphere… … FORMATION OF PLANETS 153 ginning of the end as well. It is both the result of theevolving of definite bodies out of the agglomeration ofmatter-strewn space, and the cause of the higher evolu-tion of those globes themselves. For the acquisition ofheat is the necessary preface to all that follows.…

Cosmogony

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