A Chart of the Northern Hemisphere on an equal-surface projection, showing all the Stars in Argelander's Series of forty full-sheet Charts, 324,198 in all, with a Key-Map on the same projection | Zendy

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A Chart of the Northern Hemisphere on an equal-surface projection, showing all the Stars in Argelander's Series of forty full-sheet Charts, 324,198 in all, with a Key-Map on the same projection

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