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Title: Results of the Spectroscopic and Photographic Observations

author: Royal Greenwich Observatory

publisher:

pub date: 1902

type: BOOK

ISBN_13: OSU:32435054912159

ISBN_10:

price(USD): $.99

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Title: The Rotation Period of the Sun as Determined from the Motions of the Calcium Flocculi

author: George Ellery Hale

publisher:

pub date: 1908

type: BOOK

ISBN_13: UOM:39015069406273

ISBN_10:

price(USD): $.99

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