Transcriber’s notes:

The text of this book has been preserved as in the original, apart from a few obvious misspellings.

Corrected misspellings and redundancies include the following:
comparsion → comparison
dining → during
clamly → calmly
atronomer → astronomer
oi → of
the → (deleted)
a → (deleted)

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A WHIRLING SPIRAL NEBULA, TYPICAL OF THAT FROM WHICH THE SUN AND PLANETS WERE PROBABLY EVOLVED

In the process of evolution the dense center becomes the controlling sun and the smaller spots of condensation form the planets. This particular nebula lies just under the end of the handle of the Big Dipper. It was photographed at Mt. Wilson Observatory.