(48) Holman, /. Med. Res., 1916, xxxiv, 377. 



(49) Blake, /. Med. Res., 1917, xxxvi, 99. 



(50) Lyall, J. Med. Res., 1914, xxx, 487, 415. 



(51) Brown, Monograph, Rock., Inst. Med. Res., no. 9, 1919. 



(52) Park and Williams, Path. Microorg., 1920 (Lea & Febiger, Philadelphia and 



New York) . 



(53) Dpchez, Avery and Lancefield, J.Exp. Med., 1919, xxx, 179. 



(54) Hiss, J.Exp. Med., 1905, vi, 317. 



(55) Neufeld.Zisc&r./. Hyg., 1900, xxxiv, 454. 



(56) Huntoon, J. Inf. Dis., 1918, xxiii, 169. 



(57) Dr. Hasting's formula obtained from Dr. M. L. Rhein, New York City. 



(58) Jablons and Pease, C. r. Soc. de biol., 1919, i, 205. 



(59) Rosenow, J. Dental Res., 1919, i, 205. 



(60) Leach, J.Biol. Chem., 1907, iii, 443. 



(61) Shackell, Am. J. Physiol., 1909, xxiv, 325. 



(62) Sherman, Organic Analysis, 1919, 291 (Macmillan & Co., New York). 



(63) Assoc. of Official Agricultural Chemists, U. S. Dept. Agr. Bur. Chem. Bui. 107 



(Revised) p. 23. 



(64) Koch, Hygienic Laboratory Bui. 103, p. 79. 



(65) Bloor, J.Biol. Chem., 1915, xxii, 133. 



(66) J.Biol. Chem., 1916, xxiv, 447. 



(67) Kober and Egerer, /. Am. Chem. Soc., 1915, xxxvii, 2373. 



(68) Bloor, J. Biol. Chem., 1916, xxiv, 227. 



(69) Ranson, Deutsch. med. Wochschr., 1901, xxvii, 194. 



(70) Nishimura, Archiv.f. Hyg., 1893, xviii, 318. 





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