IMMUNITY IN PNEUMOCOCCAL INFECTIONS 35 



31. Crofton. Journ. of Hyg., 1905, V., p. 444. 



32. Prochaska. Deutsch. Arch. f. klin. Med., 1901, LXX., p. 559. 



33. Cole. Johns Hopkins Hosp. Bull., 1902, p. 136. 



34. Frankel, a. Int. Beitr. z. inn Med. Leyden Festschr., 1902, II., p. 103. 



35. Wharton-Jones. Brit, and For. Med. Rev., 1842. 



36. Metchnikoff. Ann. de I'lnst. Pasteur, 1891, p. 371. 



37. Kruse and Pansini. Ztschr. f. Hyg., 1891, XL, p. 279. 



38. BESAN90N and Griffon. Ann. de I'lnst. Past., 1900, XIV., p. 449. 



39. Bail. Miinch. med. Woch., 1905, p. 1865. 



40. Hoke. Wien. klin. Woch., 1905, No. 13. 



41. KiKUCHi. Berl. klin. Woch., 1905. 



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