[362] Bancroft, _Phase Rule_, p. 203; Roozeboom, _Zeitschr. physikal. Chem._, 1891, 8. 504, 531; Stortenbeker, _ibid._, 1895, 17. 643; 1897, 22. 60; 1900, 34. 108. [363] Roozeboom, _Zeitschr. phys. Chem._, 1899, 28. 494; _Ber._, 1899, 32. 537. [364] As, for instance, strychnine racemate, a compound of racemic acid with the _optically active_ strychnine. This would be resolved into strychnine _d_-tartrate and strychnine _l_-tartrate, which are not enantiomorphous forms. [365] Van't Hoff and Meyerhoffer, _Zeitschr. physikal Chem._, 1898, 27. 75; 1899, 30. 86. Fig. 113 is taken from the latter paper. [366] Solid models constructed of plaster of Paris can be obtained from Max Kaehler and Martini, Berlin. [367] Instead of the present method of obtaining potassium chloride by decomposing carnallite with water, advantage might be taken of the fact that carnallite when heated to 168° undergoes decomposition with separation of three-fourths of the potassium chloride (van't Hoff, _Acht Vorträge über physikalische Chemie_, 1902, p. 32). [368] Roozeboom and Schreinemakers, _Zeitschr. physikal. Chem._, 1894, 15. 588. [369] These curves represent only portions of the isotherms, since the systems in which a ternary solution is in equilibrium with solid hydrogen chloride or a hydrate, have not been investigated. [370] The numbers printed beside the points on the curves refer to the number of the experiment in the original paper. [371] Lash, Miller and Kenrick, _Journ. Physical. Chem._, 1903, 7. 259; Allan, _Amer. Chem. Journ._, 1901, 25. 307. [372] Allan, _Amer. Chem. Journ._, 1901, 25. 307. [373] Hoitsema, _Zeitschr. physikal. Chem._, 1895, 17. 651; Allan, _loc. cit._ [374] Rutten, _Zeitschr. anorgan. Chem._, 1902, 30. 342. Compare the system BeO--SO_{3}--H_{2}O; Parsons, _Zeitschr. anorgan. Chem._, 1904, 42. 250. [375] _Zeitschr. anorgan. Chem._, 1904, 40. 146. [376] Schreinemakers, _Zeitschr. physikal. Chem._, 1893, 11. 76; Bancroft, _Journ. Physical Chem._, 1902, 6. 179. [377] _Zeitschr. anorgan. Chem._, 1904, 40. 148. [378] _Zeitschr. physikal. Chem._, 1903, 43. 354. [379] These equilibria were obtained by Boudouard, _Annales chim. phys._, 1901 [7], 24. 5. See also Hahn, _Zeitschr. physikal. Chem._, 1903, 42. 705; 44. 513. [380] G. Preuner, _Zeitschr. physikal. Chem._, 1903, 47. 385. [381] See Hahn, _Zeitschr. physikal. Chem._, 1903, 42. 705; 44. 513; Boudouard, _Bull. Soc. chim._, [3], 25. 484; Bodländer, _Zeitschr. f. Elektrochem._, 1902, 8. 833; R. Schenck and Zimmermann, _Ber._, 1903, 36. 1231, 3663; Schenck and Heller, _ibid._, 1905, 38. 2132; _Zeitschr. f. Elektrochem._, 1903, 9. 691; Haber, _Thermodynamik technischer Gasreaktionen_, p. 293 (Munich, 1903).