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Spectra of Alpha Lyrae, Alpha Cygni, and Alpha Bootis (27): undated

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Spectra of Beta Persei and Beta Lyrae (28): undated

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Spectra of Alpha Cassiopeii, P. Cygni, and H.P. 1311 (29): undated

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Sun? (99): undated

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Sun (100): undated

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Sun (101): undated

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Sun (102): undated

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Solar disk (103): undated

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Solar disk (104): undated

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Solar disk (107): undated

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Solar disk D.T.G. (108): undated

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Solar disk (109): undated

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Solar disk (110): undated

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Solar disk (111): undated

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Solar image (112): undated

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Sunspots (118): undated

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Sunspots (119): undated

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"Painted" spectrum (113): undated

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"Painted" spectra (115): undated

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"Painted" spectra (116): undated

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"Painted" spectra (117): undated

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Mars-Schiaparelli (7): undated

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Parallax (8): undated

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Coincidence of the spectrum of iron (9): undated

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