Macpherson, Hector, b. 1888. Modern cosmologies; a historical sketch of researches and theories concerning the structure of the universe / by Hector Macpherson.

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Macpherson, Hector, b. 1888.

Modern cosmologies; a historical sketch of researches and theories concerning the structure of the universe / by Hector Macpherson.

Astronomy -- History.

Cosmologies, Modern.