Licence: Public Domain Mark
Credit: Index of spectra / by W. Marshall Watts ; with a preface by H.E. Roscoe. Source: Wellcome Collection.
Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.
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![No. Thal6n. Kirchhoff. Intensity. 557 5700 10 69-9 5292 8 73'i 5217 5217 10 75'6 5153 5153 10 77-8 5105 10 82-1 50II 4. 84-9 4955 6 86-1 4932 6 87-2 4QII 6 98-9 4703 6 102*4 4651 4651 6 130-8 4275 6 Didymium. Gladstone. Chem. Soc. Journ., x., 219. BuNSEN. Phil. Mag. [4], xxviii., 246 ; xxxii., 177. Delafontaine. Pogg. Ann., exxiv., 635. (See Lanthanum. Erbium and Yttrium, BuNSEN and Bahr. Ann. Chem. Pharm., cxxxvii., i. HUGGINS. Proc. Roy. Soc, June 16, 1870. No. Thal6n. Int. 37*0 6434 8 41-4 6235 2 417 6223 2 41-8 6218 E 8 42*2 6199 4 42-4 6190 E 8 427 6179 6 43*o 6164 6 43*5 6148 EY 8 No. Thalen. Int. 43*9 6131 EY 10 44*3 6112 2 44*4 6106 2 447 6094 2 44'9 6088 2 45*4 6071 4 45'9 6053 4 46*3 6038 6 46*8 6019 6](https://iiif.wellcomecollection.org/image/b21914035_0054.jp2/full/800%2C/0/default.jpg)