[27] Comp. A. v. d. Broek, Phys. Zeitschr. xiv. p. 32 (1913). Phil. Mag. S. 6. Vol. 26. No. 153. Sept. 1913.
[28] Comp. J. W. Nicholson, Month. Not. Roy. Astr. Soc. 72. p.52(1912).
[29] This value is that calculated in the first part of the paper. Using the values
(see R. A. Millikan, Brit. Assoc. Rep. 1912, p. 410),
(see P. Gmelin, Ann. d. Phys. xxviii. p. 1086 (1909) and A. H. Bucherer, Ann. d. Phys. xxxvii. p. 597 (1912)),and
(calculated by Planck’s theory from the experiments of E. Warburg, G. Leithäuser, E. Hupka, and C. Müller, Ann. d. Phys. xl. p. 611 (1913)) we get
