No CrossRef data available.
Published online by Cambridge University Press: 15 September 2014
Calamoids—the four-dimensional tubes of electromagnetic force introduced by Professor Whittaker in a communication in November 1921—are not referred to in his work “On the Quantum Mechanism in the Atom” (see pp. 129–142), in which he is content to deal with three dimensions; but there is at least one point of contact between the two papers. The four-dimensional tubes include as particular cases both kinds of Faraday tubes (electric and magnetic), and magnetic forces are treated as on an equality with electric forces. In seeking for a mechanism to elucidate the quantum, a magnetic model is employed; and although Professor Whittaker is careful not to insist on the magnetic structure suggested, careful examination of his paper shows that some form of magnetic element is required both for the absorption of energy by the atom from the electron and for the transformation of the absorbed energy into the radiant form.
page 213 note † Proc. Roy. Soc. Edin., vol. xlii, p. 1, 1921.
page 213 note ‡ Ibid., vol. xli, p. 34, 1921.
page 213 note § See Nature, vol. c, p. 227, 1917, for the history of the word “magneton.”
page 214 note * Science, vol. xxxi, p. 920, June 10, 1910.
page 214 note † S. B. M'Laren, British Association Report, 1913; Phil. Mag., vol. xxvi, p. 800, 1913; Nature, vol. xcii, p. 165, 1913.
page 214 note ‡ Parson, A. L., Smithsonian Misc. Coll, vol. lxv, No. 11, 1915.Google Scholar
page 214 note § Allen, H. S., Phil. Mag., vol. xli, p. 119, 1921.Google Scholar
page 214 note ‖ SirEwing, J. A., Proc. Roy. Soc., vol. c, p. 449, 1922CrossRefGoogle Scholar; Phil. Mag., vol. xliii, p. 493, 1922; Proc. Roy. Soc. Edin., vol. xlii, p. 97, 1922.
page 215 note * The difficulty of explaining magnetic effects in terms of the electron theory was clearly pointed out by M'Laren at the British Association meeting of 1913. An abstract of his paper appears in the Annual Report for that year.
page 215 note ‡ Allen, H. S., Phil. Mag., vol. xxix, p. 40Google Scholar, p. 140, p. 714, 1915.
page 216 note * Allen, H. S., Phil. Mag., vol. xlii, p. 523, 1921.CrossRefGoogle Scholar
page 218 note * Lewis, and Adams, , Phys. Rev., vol. iii, p. 92, 1914.CrossRefGoogle ScholarAllen, H. S., Proc. Phys. Soc., vol. xxvii, p. 425, 1915.Google Scholar
page 219 note * Planck, , Acta Mathematica, vol. xxxviii, p. 387, 1921.CrossRefGoogle Scholar
page 219 note † Fowler, R. H., Proc. Roy. Soc., vol. xcix, p. 462, 1921.CrossRefGoogle Scholar