A very interesting read. The word 'galaxy' was not in use in 1908, hence the following incorrect but logical assumption:
Quote:
3. Most of these nebulæ have a spiral structure.
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While I must leave to others an estimate of the importance of these conclusions, it seems to me that they have a very direct bearing on many, if not all, questions concerning the cosmogony. If, for example, the spiral is the form normally assumed by a contracting nebulous mass, the idea at once suggests itself that the solar system has been evolved from a spiral nebula, while the photographs show that the spiral nebula is not, as a rule, characterized by the simplicity attributed to the contracting mass in the nebular hypothesis.
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