192 Report S.A.A. Advancement of Science. 



speaking, we can only expect to influence a tissue with a substance 

 for which the membranes of the cells are permeable (exception is 

 plasmolysis). 



In this short review I hope to have given an idea of the extensive 

 application of physical chemistiy on vital phenomena and the patho- 

 logical problems. The physical chemistr}' of homogeneous S3\stems 

 is thoroughly worked out. The study of the heterogeneous systems 

 or colloids is comparatively recent, but it promises to become very 

 productive. 



Our task is to follo\\' the course of this science and to apply the 

 results as much as possible to the study of animal diseases in South 

 Africa. 



LITERATURE INDEX. 



Arrhenius, S., Zeitsclirift fiir Fhysik. Chemie, 1, 631, 1887. 

 „ ' ■ „ 2, 284, 1888. 



Beckmann „ „ 2, 638, 1888. 



Beitzke and Neuberg, Virchow's Archiv., 183, 169, 1906. 

 Besredka, Annales de /'hisfitiU Pasteni', 1901. 



Biltz, W., Berichte de/r deuti<chen cheinischen GeseUschaft, 37, 1095, 1904. 

 ,, Zeitschrift fur Elektrochemie, No. 35, 1904. 



,, Much and Siebert, BpJirings Beitrdqe fur fixjierimentelle 



Therapie, No. 10, 1905. 

 Bordet, J., Annales de rinstitut Pasteur, 1898, 1899 and 1900. 

 Bredig, Asher-Spiro, Eryph. d. Physiol., i, 134, 1902. 

 Craw, J. A., Proc. Roijal Soc. B. 76, No. 508, 1905. 

 Danysz, Annales de rinstitut Pasteior, 16, 331, 1901. 

 Devaux, Proces, verhatix Bord^aiix, Nov. and Dec, 1903, and Jan. 1904. 

 Duclaux, Conference Soc. chimique de Par-is, 3rd Dec. 1904. 

 Dungern, Deutsche med. Wochenschrift, 30, 275, 1898. 

 Euler, H., Asher-Spiro, Ercjeb., 6, 187, 1907. 

 Frei, W., Thesis on H(emolysis, Zurich, 1907. 



,, Tratisvaal Medical Jovrnal, April, 1908. 



,, On Surface Tension. Papei- read before Transvaal Biologic. 

 Soc. 15th June, 1908. 

 Ereundlich, Zeitschr. fiir Physik. Chemie, 44, 129, 1903. 



,, Zeitschr. fiir Chemie und Industrie d. KoUoide, 1, 321, 



1907; 11, 65, 1907. 

 ,, Zeitschr. fiir Physik. Chemie, 57, 385, 1907. 



Gengou, Comptes Rendus Acad. Sciences, April, 1904. 



„ Annales de rinstitut Pasteur, p. 678, 1904. 

 Gibbs, W., Trans. Conn. Acad., 3, 108, 343. 

 Hamburger, Osniot, Pres.^ure and Ions in Medical Science, vols. 1-3, 



Wiesbaden, 1902-1904. 

 Hamburger and Hekma, HiorJieviische Zeitsch, 9, 273, 1908. 

 Henri, \., and Girard-Mangin, Compt. Rend. Soc. Biol, during 1904. 

 Henri, Y., and Cerno^•odeanu, Compt. Rend. Soc. Biol. 1905 and 1906. 

 „ „ Comptes Rendus, May, 1905. 



