FOOTNOTES:[1]International Atomic Weights, 1917.[2]Aston, Isotopes, 1922; Phil. Mag., 47, 385, 1924; Nature, 113, 192, 856, 1924;Ibid., 114, 273, 716, 1924. Products of radioactive disintegration are omitted.[3]Clarke and Washington, Proc. N. Ac. Sci., 8, 108, 1922.[4]Bohr, Naturwiss., 11, 619, 1923.[5]Sommerfeld, Atombau und Spektrallinien, 3d. edition, 286, 1922.[6]A. Fowler, Proc. Roy. Soc., 105A, 299, 1924.[7]Sommerfeld, Atombau und Spektrallinien, 3d edition, 457, 1922.[8]Meggers, Kiess, and Walters, J. Op. Soc. Am., 9, 355, 1924.[9]A. Fowler, Report on Series in Line Spectra, 1922; Bakerian Lecture, 1924.[10]Paschen, An. d. Phys., 71, 151, 1923.[11]Sommerfeld, Atombau und Spektrallinien, 3d. edition, 255, 1922; A. Fowler, Proc. Roy. Soc., 90A, 426, 1913; Paschen, An. d. Phys., 50, 901, 1919.[12]H. H. Plaskett, Pub. Dom. Ap. Obs., 1, 348, 1922.[13]P. 156.[14]Millikan and Bowen, Phys. Rev., 23, 1, 1924; Nature, 114, 380, 1924.[15]Hartree, Proc. Camb. Phil. Soc., 22, 464, 1924; Thomas, Phys. Rev., 25, 322, 1925.[16]Verh. d. Deutsch. Phys. Ges., 21, 728, 1919.[17]Phil. Mag., 46, 872, 1923.[18]Proc. Roy. Soc., 103A, 121, 1923.[19]Proc. N. Ac. Sci., 10, 322, 1924.[20]Proc. Phys. Soc. Lond., 36, 94, 1924.[21]An. d. Phys., 43, 96, 1914.[22]Phys. Zeit., 18, 121, 1917.[23]Phys. Zeit., 21, 322, 1922.[24]Proc. Copenhagen Ac., 1919.[25]Physica, 4, 337, 1924.[26]Physica, 4, 340, 1924.[27]Zeit. f. Tech. Phys., 5, 2, 1925.[28]Atombau und Spektrallinien, 3d edition, 588, 1922.[29]Physica, 3, 188, 1923; Zeit. f. Phys., 13, 206, 1923;ibid., 22, 270, 1924; Dissertation, Utrecht, 1924; Physica, 5, 27, 1925.[30]King, Mt. W. Contr. 53, 1911;ibid., 60, 1912.[31]St. John and Babcock, Ap. J., 60, 32, 1924.[32]Zeemann, Researches in Magneto-Optics, 1911.[33]Hale, Mt. W. Contr. 30, 1908.[34]Landé, Zeit. f. Phys., 15, 189, 1923.[35]Stark, Elektrische Spektralanalyse Chemischer Atome, 1914.[36]Merton, Proc. Roy. Soc., 92A, 322, 1915;ibid., 95A, 33, 1919.[37]Anderson, Mt. W. Contr. 134, 1917.[38]Takamine, Mt. W. Contr. 169, 1919.[39]Evershed, Observatory, 45, 166, 1922;ibid., 45, 296, 1922.[40]Lindemann, Observatory, 45, 167, 1922.[41]Hulburt, Ap. J., 59, 177, 1924.[42]Russell and Stewart, Ap. J., 59, 197, 1924.
[1]International Atomic Weights, 1917.
[1]International Atomic Weights, 1917.
[2]Aston, Isotopes, 1922; Phil. Mag., 47, 385, 1924; Nature, 113, 192, 856, 1924;Ibid., 114, 273, 716, 1924. Products of radioactive disintegration are omitted.
[2]Aston, Isotopes, 1922; Phil. Mag., 47, 385, 1924; Nature, 113, 192, 856, 1924;Ibid., 114, 273, 716, 1924. Products of radioactive disintegration are omitted.
[3]Clarke and Washington, Proc. N. Ac. Sci., 8, 108, 1922.
[3]Clarke and Washington, Proc. N. Ac. Sci., 8, 108, 1922.
[4]Bohr, Naturwiss., 11, 619, 1923.
[4]Bohr, Naturwiss., 11, 619, 1923.
[5]Sommerfeld, Atombau und Spektrallinien, 3d. edition, 286, 1922.
[5]Sommerfeld, Atombau und Spektrallinien, 3d. edition, 286, 1922.
[6]A. Fowler, Proc. Roy. Soc., 105A, 299, 1924.
[6]A. Fowler, Proc. Roy. Soc., 105A, 299, 1924.
[7]Sommerfeld, Atombau und Spektrallinien, 3d edition, 457, 1922.
[7]Sommerfeld, Atombau und Spektrallinien, 3d edition, 457, 1922.
[8]Meggers, Kiess, and Walters, J. Op. Soc. Am., 9, 355, 1924.
[8]Meggers, Kiess, and Walters, J. Op. Soc. Am., 9, 355, 1924.
[9]A. Fowler, Report on Series in Line Spectra, 1922; Bakerian Lecture, 1924.
[9]A. Fowler, Report on Series in Line Spectra, 1922; Bakerian Lecture, 1924.
[10]Paschen, An. d. Phys., 71, 151, 1923.
[10]Paschen, An. d. Phys., 71, 151, 1923.
[11]Sommerfeld, Atombau und Spektrallinien, 3d. edition, 255, 1922; A. Fowler, Proc. Roy. Soc., 90A, 426, 1913; Paschen, An. d. Phys., 50, 901, 1919.
[11]Sommerfeld, Atombau und Spektrallinien, 3d. edition, 255, 1922; A. Fowler, Proc. Roy. Soc., 90A, 426, 1913; Paschen, An. d. Phys., 50, 901, 1919.
[12]H. H. Plaskett, Pub. Dom. Ap. Obs., 1, 348, 1922.
[12]H. H. Plaskett, Pub. Dom. Ap. Obs., 1, 348, 1922.
[13]P. 156.
[13]P. 156.
[14]Millikan and Bowen, Phys. Rev., 23, 1, 1924; Nature, 114, 380, 1924.
[14]Millikan and Bowen, Phys. Rev., 23, 1, 1924; Nature, 114, 380, 1924.
[15]Hartree, Proc. Camb. Phil. Soc., 22, 464, 1924; Thomas, Phys. Rev., 25, 322, 1925.
[15]Hartree, Proc. Camb. Phil. Soc., 22, 464, 1924; Thomas, Phys. Rev., 25, 322, 1925.
[16]Verh. d. Deutsch. Phys. Ges., 21, 728, 1919.
[16]Verh. d. Deutsch. Phys. Ges., 21, 728, 1919.
[17]Phil. Mag., 46, 872, 1923.
[17]Phil. Mag., 46, 872, 1923.
[18]Proc. Roy. Soc., 103A, 121, 1923.
[18]Proc. Roy. Soc., 103A, 121, 1923.
[19]Proc. N. Ac. Sci., 10, 322, 1924.
[19]Proc. N. Ac. Sci., 10, 322, 1924.
[20]Proc. Phys. Soc. Lond., 36, 94, 1924.
[20]Proc. Phys. Soc. Lond., 36, 94, 1924.
[21]An. d. Phys., 43, 96, 1914.
[21]An. d. Phys., 43, 96, 1914.
[22]Phys. Zeit., 18, 121, 1917.
[22]Phys. Zeit., 18, 121, 1917.
[23]Phys. Zeit., 21, 322, 1922.
[23]Phys. Zeit., 21, 322, 1922.
[24]Proc. Copenhagen Ac., 1919.
[24]Proc. Copenhagen Ac., 1919.
[25]Physica, 4, 337, 1924.
[25]Physica, 4, 337, 1924.
[26]Physica, 4, 340, 1924.
[26]Physica, 4, 340, 1924.
[27]Zeit. f. Tech. Phys., 5, 2, 1925.
[27]Zeit. f. Tech. Phys., 5, 2, 1925.
[28]Atombau und Spektrallinien, 3d edition, 588, 1922.
[28]Atombau und Spektrallinien, 3d edition, 588, 1922.
[29]Physica, 3, 188, 1923; Zeit. f. Phys., 13, 206, 1923;ibid., 22, 270, 1924; Dissertation, Utrecht, 1924; Physica, 5, 27, 1925.
[29]Physica, 3, 188, 1923; Zeit. f. Phys., 13, 206, 1923;ibid., 22, 270, 1924; Dissertation, Utrecht, 1924; Physica, 5, 27, 1925.
[30]King, Mt. W. Contr. 53, 1911;ibid., 60, 1912.
[30]King, Mt. W. Contr. 53, 1911;ibid., 60, 1912.
[31]St. John and Babcock, Ap. J., 60, 32, 1924.
[31]St. John and Babcock, Ap. J., 60, 32, 1924.
[32]Zeemann, Researches in Magneto-Optics, 1911.
[32]Zeemann, Researches in Magneto-Optics, 1911.
[33]Hale, Mt. W. Contr. 30, 1908.
[33]Hale, Mt. W. Contr. 30, 1908.
[34]Landé, Zeit. f. Phys., 15, 189, 1923.
[34]Landé, Zeit. f. Phys., 15, 189, 1923.
[35]Stark, Elektrische Spektralanalyse Chemischer Atome, 1914.
[35]Stark, Elektrische Spektralanalyse Chemischer Atome, 1914.
[36]Merton, Proc. Roy. Soc., 92A, 322, 1915;ibid., 95A, 33, 1919.
[36]Merton, Proc. Roy. Soc., 92A, 322, 1915;ibid., 95A, 33, 1919.
[37]Anderson, Mt. W. Contr. 134, 1917.
[37]Anderson, Mt. W. Contr. 134, 1917.
[38]Takamine, Mt. W. Contr. 169, 1919.
[38]Takamine, Mt. W. Contr. 169, 1919.
[39]Evershed, Observatory, 45, 166, 1922;ibid., 45, 296, 1922.
[39]Evershed, Observatory, 45, 166, 1922;ibid., 45, 296, 1922.
[40]Lindemann, Observatory, 45, 167, 1922.
[40]Lindemann, Observatory, 45, 167, 1922.
[41]Hulburt, Ap. J., 59, 177, 1924.
[41]Hulburt, Ap. J., 59, 177, 1924.
[42]Russell and Stewart, Ap. J., 59, 197, 1924.
[42]Russell and Stewart, Ap. J., 59, 197, 1924.