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Laboratory spectrum (30): 17 April 1877

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Cyanogen laboratoy spectrum (39): 17 April 1877

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Chloride of Tin? Seems to be Nitrogen only (1): 18 April 1877

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Bromide of Silicon (12): 18 April 1877

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Fluoride of silicon laboratory spectrum (21): 23 April 1877

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Bromide of silicon laboratory spectrum (46): 23 April 1877

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Cyanogen (10): 23 April 1877

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Carbonic Acid (16): 28 April 1877

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Carbonic acid laboratory spectrum (33): 1 May 1877

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Carbonic acid laboratory spectrum (27): 3 May 1877

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Spectrum of Sulphuret of L? (26): 21 May 1877

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Solar spectrum with comparison (45): 29 May 1877

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Iodine (17): December 1877

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Spectrum of Iodine (22): December 1877

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Spectrum (29): 1877

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Sulphur (7): 1 January 1878

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Sulphur (28): 1 January 1878

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Spectra (10): 5 January 1878

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Spectra (5): 6 January 1878

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Sulphuretted Hydrogen (6): 14 February 1878

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Coal gas laboratory spectrum (24): 14 February 1878

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Spectra (13): 15 March 1878

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Spectra (3): 16 March 1878

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Solar spectrum with comparison (44): 16 March 1878

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