47 



temperature and time during wliicli the solute is heated, and on the 

 rate of cooling of the solution. Such variations must be taken into 

 account and carefully controlled, since it has been shown that the 

 physical condition of 'both gelatine and starch has a very considerable 

 effect on the rate of escape of gas from solution, in fact the determina- 

 tion of gas evolution provides a means of closely following the changes 

 indicated above, and of investigating the nature and history of a 

 particular gelatine. (For details, see Findlay and King-*, Part II.) 



III. — Rate of Solution. 



Except for incidental observations by Findlay and co-workers 

 and by Geifcken, no investigation on this question appears to have 

 been reported. A bibUography of work published on the rate of 

 solution in water will be found under Papers 2, 9, 34, 38, 43, 47, 64. 



Bibliography. 



' J. S. Anderson, Zeit. f. Physikal Ghem., 58/-, 191-228 (1914). 



2 Adeney & Becker, Sci. Proc. Boy. Dubl. Soc, 15/-, 385 (1918). 



3 Bau, Woch. J. Brau., 382 (1904). 



' J. Barcroft (The respiratory fxinction of blood) Cambridge, 320 pp. (1914). 



5 Berthelot & Trammy, Compt. Rend., 168, 121 (1919). 



6 Buckmaster J. Physiol, 51, 164 (1917). 



" Boj'cott & Chisholm, Bio. Ghem. Jour., 523 (1910). 



8 Bohr, Wied. Ann., 68, 500 (1899). 



' Carlson, Jour, de Ghem. Physique, 9/-, 235 (1911). 

 " Cassuto, Nuovo Ghem., 6, 5-20 (1903); J. C. S., abs. i., 161 (1904). 

 1* Christiansen, Douglass & Haldane, J. Physiol. 48, 244 (1914). 

 12 Drucker, J. C. S., abs. ii., 25 (1911). 



i» Emslander & Freundlich, Zeit Physikal Ghem., 49, 317 (1904). 

 " Findlay & Harbv, Zeit. Ghem. Ind. Roll., 3, 169 (1908). 

 « Findlay & Creighton, Bio. Ghem. Jour., 5, 301 (1910). 

 " Findlay, Ibid, J. C. S. Trano, 97, 536, 555, 560 (1910). 

 " Findlay & Shen, ibid, 101, 1459 (1912). 

 18 Findlay & Shen, ibid 101, 1313 (1912). 

 " Findlay & WilUans, ibid, 103, 636 (1913). 

 2» Findlay & HoweU, ibid, 105, 291 (1914). 

 " Findlay, Ibid, ibid, 107, 282 (1915). 

 2- FincUay & King, ibid, 103, 1170, 1175 (1913). 

 " Findlay, Ibid, ibid, 105, 1297 (1914). 

 -^ Geffcken Zeit. Physikal Ghem., 49, 257 (1904), 

 " Garett, Phil. Mag., 6, 374 (1903). 

 ^li Harnack, Zeit. Physikal Ghem., 26, 571 (1899). 

 " Binen, J. Soc. Ch. Ind., 504, (1905). 

 *« Jager, Ghem. Abs., 10, 551 (1916). 

 '» Krematm, J. G. S. (i), 544 (1919). 



»" Langer, Zeit. Brauwesen, 21, 307 (1904); J. S.G.J. 555(1901). 

 SI Langer & Schultze, Zeit. Brums., 2, 369 (1879); 6, 329 (1883). 

 32 Lamplough, Proc. Gamb. Phil. Soc, 14, 591 (1908). 

 " Lefebui-e, J. G. S., Trans. 332 (1914). 

 »' Luther & MacDougall, J. G. S., ii., 361 (1908). 

 ^' Luther & Kasnjavi, Zeit. Physikel Ghem. 46, 170 (1905). 

 »" Marc, Zeit. F. Ghem. Ind. Roll., 14, 181. 

 " Menz., Zeit. Physikel Ghem., 66, 129 (1909). 

 " J. Meyer, Zeit f. Elektroch., 241 (1909) 

 '» Mohr, Woch f. Brau., 363 (1904). 

 "Muller, Wied Ann, 37, 24 (1889). 

 11 H. Miiller, J. G. S., 23, 37 (1870). 



