[103] These changes can be predicted quantitatively by means of the thermodynamic equation, _dp_/_dt_ = Q/(T(_v_{2}_ - _v_{1}_)), provided the specific volumes of the phases are known, and the heat effect which accompanies the transformation of one phase into the other. [104] _Studies on Chemical Dynamics_, translated by Ewan, p. 218. [105] Le Chatelier, _Compt. rend._, 1884, 99. 786. [106] See _Principles of Inorganic Chemistry_, translated by Findlay, 2nd edit., p. 133. (Macmillan, 1904.) [107] Roozeboom, _Zeitschr. physikal. Chem._, 1888, 2. 474. [108] Roozeboom, _Das Heterogene Gleichgewicht_, I. p. 189. [109] Roozeboom, _Das Heterogene Gleichgewicht_, I. p. 125. See also Zawidski, _Zeitschr. physikal. Chem._, 1904, 47. 727; van Eyk, _ibid._, 1905, 51. 720. [110] Roberts-Austen, _Proc. Roy. Soc._, 63. 454; Spring, _Zeitschr. physikal. Chem._, 1894, 15. 65. See also p. 35. [111] Ramsay and Young, _Phil. Trans._, 1884, 175. 461; Allen, _Trans. Chem. Soc._, 1900, 77. 413. [112] Ramsay and Young, _Phil. Trans._ 1886, 177. 87. [113] This is exemplified in the well-known experiment with the cryophorus. [114] Tammann has, however, found that the fusion curve (solid in contact with liquid) of phosphonium chloride can be followed up to temperatures above the critical point (_Arch. néer._, 1901 [2], 6. 244). [115] _Phil. Mag._, 1886, 21. 33. See also S. A. Moss, _Physical Review_, 1903, 16. 356. [116] This is found also in the case of bismuth. See Tammann, _Zeitschr. anorgan. Chem._, 1904, 40. 54. [117] See p. 57, footnote. [118] _Pogg. Annalen_, 1850, 81. 562. [119] Barus, _Amer. Jour. Sci._, 1892, 42. 125; Mack, _Compt. rend._, 1898, 127. 361; Hulett, _Zeitschr. physikal. Chem._, 1899, 38. 629. [120] _Annalen der Physik_, 1899 [3], 68. 553, 629; 1900 [4], 1. 275; 2. 1; 3. 161. See also Tammann, _Kristallisieren und Schmelzen_ (Leipzig, 1903). [121] Ostwald, _Lehrbuch_, II. 2. 373; Poynting, _Phil. Mag._, 1881 [5], 12. 2; Planck, _Wied. Annalen_, 1882, 15. 446. [122] Bakhuis Roozeboom, _Das Heterogene Gleichgewicht_, I. p. 91. [123] Lussana, _Il nuovo Cimento_, 1895 [4], 1. 105. [124] Tammann, _Zeitschr. physikal. Chem._, 1903, 46. 818. [125] Foote, _Zeitschr. physikal. Chem._, 1900, 33. 740. [126] Ostwald, _Zeitschr. physikal. Chem._, 1897, 22. 289. [127] Van't Hoff, _Arch, néer._, 1901, 6. 471. [128] See, for example, the determinations of the solubility of rhombic and monoclinic sulphur, by J. Meyer, _Zeitschr. anorg. Chem._, 1902, 33. 140. [129] _Zeitschr. physikal. Chem._, 1899, 32. 506. [130] Kastle and Reed, _Amer. Chem. Jour._, 1902, 27. 209. [131] _Zeitschr. physikal. Chem._, 1900, 35. 581. [132] _Compt. rend._, 1882, 95. 1278; 1884, 97. 1298, 1366, 1433. [133] _Zeitschr. physikal. Chem._, 1893, 12. 545. [134] _Sitzungsber. Wiener Akad._, 1894, 103. IIa. 226. [135] _Zeitschr. physikal. Chem._, 23-29. See also Küster, _ibid._, 25-28. [136] _Zeitschr. physikal. Chem._, 1897, 24. 152.