A VERY small but very bright prominence on the N. W. limb of the sun, observed at Xeres Dec. 21st, gave in addition to the ordinary protuberance bright lines the following—one below C at 656 Kirchhoff's scale precisely corresponding to an iron line in the solar spectrum—also 3 at 1601, 1605, and 1607, the reversal of a well-known group of Chromium lines. The latter I believe are new in prominence spectra.
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YOUNG, C. Note on Chromosphere Lines. Nature 3, 266–267 (1871). https://doi.org/10.1038/003266c0
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