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Room's reflection on a sphere (35): undated

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Pair of optical slits (120): undated

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Pair of optical slits (121): undated

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Wavelength scale (122): undated

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Mask with set of slits (123): undated

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James Prescott Joule portrait (1): undated

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James Prescott Joule's early apparatus (2): undated

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James Prescott Joule's later apparatus (3): undated

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Rowland's apparatus (4): undated

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Two painted cats and moon (5): undated

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Drawing of solar prominences (6): undated

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Drawing of solar prominences (7): undated

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Drawing of solar prominences (8): undated

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Drawing of solar prominences (10): undated

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Drawing of solar prominences (11): undated

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Drawing of solar prominences (12): undated

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Mg? with plate of glass in rays? (9): undated

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Chart of Pleicedes showing nebula around stars taken with 8 inch telescope (14): undated

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Bl. lines Argus (16): undated

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434 (18): undated

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Nova Normae and Nova Aurigae spectra (19): undated

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No. D3258 - New variable in Scorpius (20): undated

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Cluster in Centauri (21): undated

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AZ 31 - New variable in Scorpius (22): undated

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