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Start Over Collections Medicine in the Americas, 1610-1920 ✖Remove constraint Collections: Medicine in the Americas, 1610-1920 Subjects Solar System ✖Remove constraint Subjects: Solar System Titles The solar atmosphere: an introduction to an account of researches made at the Allegheny Observatory ✖Remove constraint Titles: The solar atmosphere: an introduction to an account of researches made at the Allegheny Observatory

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  • The solar atmosphere: an introduction to an account of researches made at the Allegheny Observatory1