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Index of Spectra (Appendix O)

    Naturevolume 71page486 (1905) | Download Citation



    THIS is the latest addition to the very useful series of appendices which Dr. Marshall Watts has given to his well-known “Index of Spectra.” In it he has brought together the arc spectrum of molybdenum by Hasselberg, the spark spectra of calcium, scandium, indium, beryllium, lithium, thallium, antimony, and arsenic, by Exner and Haschek; of calcium, lithium, thallium, and antimony, by Eder and Valenta; of radium, by Runge and Precht; and the oxy-hydrogen flame spectra of lithium, potassium, rubidium, and cæsium, by Ramage. Hasselberg's comprehensive record of the arc lines of molybdenum takes up about half the pages of the appendix. In the cases of metals investigated both by Exner and Haschek, and Eder and Valenta, the records are compared in parallel columns. The oscillation frequencies corresponding to the wave-lengths of all the lines given have been reduced by the compiler.

    Index of Spectra. (Appendix O.)

    By W. Marshall Watts (Lond). Pp. 40. (Manchester: Abel Heywood and Son, 1904.) Price 3s.

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