[134] Ueber die Plasticität der Eiskrystalle. Neues Jahrbuch für Mineralogie, etc., 1895, Bd. II, p. 211.
[135] On the Plasticity of Glaciers and other Ice. Proc. Roy. Soc., Vol. XLIV, 1888, pp. 331–67 (with D. A. Kidd); Vol. XLVIII, 1890, pp. 259, 260; Vol. XLIX, 1891, pp. 323–43.
[136] Grönland-Expedition der Gesellschaft für Erdkunde zu Berlin, 1891–93, Bd. I, p. 491 et seq.
[137] References on glacier structure and motion.—L. Agassiz, Études sur les Glaciers, Neuchâtel, 1840. Rendu, Théorie des Glaciers de la Savoie, Soc. Roy. Acad., Savoie, Mém. 1840 (in English, ed. by Geo. Forbes, London, 1874). J. de Charpentier, Essai sur les Glaciers et le terrain erratique du Basin du Rhone, Lausanne, 1841. F. J. Hugi, Ueber das Wesen der Gletscher und Wintereise in dem Eismeer, Stuttgart, 1842. R. Mallet, The Mechanism of Glaciers, Jour. Geol. Soc. Dublin, Vol. I, p. 317; On the Plasticity of Glacier Ice, Jour. Geol. Soc. Dublin, 1845, Vol. III, p. 122; On the Brittleness and Non-plasticity of Glacier Ice, Phil. Mag., XXVI, p. 586. James Thompson, On the Plasticity of Ice as Manifested in Glaciers, Roy. Soc. Proc., Vol. 8, 1857, pp. 455–58. J. Tyndall and T. H. Huxley, On the Structure and Motion of Glaciers, Phil. Trans., 1857, Vol. CXLVII, p. 327. J. D. Forbes, Occasional Papers on the Theory of Glaciers, Edinburgh, 1859. W. Hopkins, On the Theory of the Motion of Glaciers, Phil. Trans., 1862, p. 677; Phil. Mag., 1863, Vol. XXV, p. 224. J. Tyndall, Forms of Water, New York, 1872; The Glaciers of the Alps, London, 1861. James Croll, On the Physical Cause of the Motion of Glaciers, Phil. Mag., 1869, Vol. 38, pp. 201–6. A. Heim, On Glaciers, Phil. Mag., 1871, Vol. 41, pp. 485–508; Handbuch der Gletscherkunde, 1885. H. Moseley, On the Cause of the Descent of Glaciers, Br. Assoc. Rept., 1860, Pt. 2, p. 48; also Phil. Mag., 1869, Vol. 37, pp. 229, 363; Vol. 39, p. 241; Vol. 42, p. 138; Vol. 43, p. 38. Ch. Grad, La Constitution et le movement des Glaciers, Revue Sci., 1872. H. J. Rink, Danish Greenland, 1877. R. M. Deeley, A Theory of Glacial Motion, Phil. Mag., 1888, Vol. 25, pp. 136–64. J. C. McConnel, On the Plasticity of an Ice Crystal, Proc. Roy. Soc. London, Vol. 48, 1890, pp. 256–60; ibid., Vol. 49, 1891, pp. 323–43. O. Mügge, Über die Plasticität der Eiskrystalle, Nachr. k. Ges. d. Wiss., Göttingen, 1895, pp. 1–4. R. M. Deeley and George Fletcher, The Structure of Glacier Ice and its Bearings on Glacier Motion, Geol. Mag. (London), Decade 4, Vol. 2, 1895, pp. 152–62. T. C. Chamberlin, Presidential address before the Geol. Soc. Am., Bull. Geol. Soc. Am., Vol. VI, February 1895, pp. 199–220. Reid, Mechanics of Glaciers, Jour. Geol., Vol. IV, 1896, p. 912. Erich von Drygalski, Grönland-Expedition der Gesellschaft für Erdkunde zu Berlin, 1891–93, Vol. I, 1897.
[138] Much information on these and other points is to be found in the following books: Wild’s Thalassa; Thompson’s Depths of the Sea; Barker’s Deep Sea Soundings, and Maury’s Physical Geography; Agassiz’ The Three Cruises of the Blake, and the Challenger Reports give much more detailed information concerning these and other matters.
[139] Dittmar, Challenger Reports, Physics and Chemistry, Vol. I, p. 204.
[140] For a discussion of the way in which this gas is held in solution, see Tolman, Jour. of Geol., Vol. VII, pp. 598–618.
[141] Murray, Scot. Geogr. Mag., Vol. IV, p. 39.
[142] Murray, Scot. Geogr. Mag., Vol. III, p. 76.
[143] Ibid., p. 70.