SE PRECIPITIN REACTION. 333 



18. Arrhenius, Ergeb. der Physiol., vn, p. 511, Wiesbaden, 



1908. 



19. Hunter, Journ. of Physiol., xxxiii, p. 239, 1905. 



20. Arrhenius u. Hamburger, Abstract, Biochem. Oentralb. 



v, p. 395, 1900. 



21. Arrhenius, Iramunochemistry, p. 288, New York, 1907. 



22. Arrhenius, Ergeb. der Physiol., vn, p. 515, Wiesbaden, 



1908. 



23. Ibid., p. 518. 



24. Chapman, Proc. Linn. Soc. N.S.W., 1910. 



25. Von Dungern, Central, f. Bakt., Originate, xxxiv, p. 355 



1903. 



26. Miiller, Archiv. f. Hyg.. xliv, p. 126, 1902. 



27. Miiller, Oentralb. f. Bakt., Originale, xxxn, p. 521, 1902. 



28. Fleischmann u. Michaelis, quoted by Michaelis, Oppen- 



heim's Handbuch der Biochemie, Bd. n, Heft 1, p. 

 565, Jena, 1909. 



29. Welsh and Chapman, Proc. Roy. Soc. Lond., B, Vol. 



lxmx. j>. 165, 1907. 



30. Welsh aad Chapman, Journ. of Pathol, and Bacterid., 



Vol. xin, p. 206, 1909. 



31. Welsh and Chapman, On the differentiation of the pro- 



teins of closely allied species, London, 1910. 



32. Moll, quoted by Rodet, loc. eit. 



33. Rodet, Compt. Rend. Soc. de Biol., Paris, p. 671, 1906. 



