Immunity and Resistance 653 



147. 1923. Riforma med. 39: 967. 



148. Schilling, C. 1912. Deutsch. med. Wchnschr. 36: 13. 



149. Schroeder, E. C. and W. E. Cotton 1907. 22d Ann. Rep. Bur. Anim. Industry, p. 71. 



150. Schumaker. E. 1930. Amer. J. Hyg. 12: 341. 



151. Seeler, A. O. and W. H. Ott 1944. /. Inf. Dis. 75: 175, 



152. and 1945. /. Inf. Dis. 77: 82. 



153. Senekjie, H. A. 1941. Amer. J. Hyg. 34 (C): 63. 



154. 1943. Proc. Soc. Exp. Biol. & Med. 52: 56. 



155. Sen Gupta, P. C. 1943. Indian Med. Gaz. 78: 336. 



156. 1943. Indian Med. Gaz. 78: 537. 



157. Shi Lu Chang and \V. O. Negherbon 1947. /. Inf. Dis. 81: 209. 



158. Sice, A. 1929. Bull. Soc. Path. Exot. 22: 912. 



159. 1930. Bull. Soc. Path. Exot. 23: 459. 



160. Sinton, J. A. 1937. Rec. Malar. Surv. India 7: 85. 



161. , E. L. Hutton and P. G. Shute 1939. Trans. Roy. Soc. Trap. Med. & Hyg. 



33: 47. 



162. Smith, T. and F. L. Kilborne 1893. Bur. Anim. Ind. Bull. 1, 301 pp. 



163. Sotiriades, D. 1917. Gri-ce Med. 19: 27. 



164. Stratman-Thomas, W. K. and A. D. Dulaney 1940. Amer. J. Trop. Med. 20: 717. 



165. and 1940. /. Immunol. 39: 257. 



166. Taliaferro, L. G. 1925. Amer. J. Hyg. 5: 742. 



167. Taliaferro, W. H. 1924. /. Exp. Med. 39: 171. 



168. 1926. Quart. Rev. Biol. 1: 246. 



169. 1928. Amer. J. Publ. Health 18: 793. 



170. 1938. /. ImmuTiol. .35: 303. 



171. 1941. "The Immunology of the Parasitic Protozoa" in Calkins and Sum- 



ners. Protozoa in Biological Research (New York: Columbia Press), p. 830. 



171a. 1941. Amer. Nai. 75: 458. 



172. 1948. Proc. 4th Intern. Cougr. Trop. Med. & Malar. 1: 776, 



173. 1948. Bad. Rev. 12: 1. 



174. and P. R. Cannon 1936. /. Inf. Dis. 59: 72. 



175. , and S. Goodloe 1931. Amer. J. Hyg. 14: 1. 



176. and T. L. Johnson 1926. /. Prev. Med. h 85. 



177. and H. VV. Mulligan 1937. Ind. Med. Res. Mem., No. 29. 



178. and L. G. Taliaferro 1922. Amer. J. Hyg. 2: 264. 



179. and 1934. /. Immunol. 26: 193. 



180. and 1940. /. Inf. Dis. 66: 152. 



181. and 1944. /. Inf. Dis. 75: 1. 



182. and 1947. /. Inf. Dis. 80: 78. 



183. and 1948. ./. Inf. Dis. 82: 5. 



183a. and 1949. /. Inf. Dis. 85: 101. 



184. , and F. E. Kclsey 1948. Science 107: 460. 



185. , and E. L. Simmons 1945. 7. Inf. Dis. 77: 158. 



186. Tanzer, C. 1941. /. Immunol. 42: 291. 



187. Thomson, K. J., J. Freund, H. E. Somer and A. W. Walter 1947. Amer. J. Trop. 



Med. 27: 79. 



188. Thomson. J. G. 1933. Trans. Roy. Soc. Trop. Med. & Hyg. 26: 483. 



189. Trager, W. 1943. /. Exp. Med. 77: 557. 



190. 1947. J. Exp. Med. 85: 663. 



191. Tyzzer, E. E. and E. E. Jones 1929. Amer. J. Hyg. 10: 269. 



192. , H. Theiler and E. E. Jones 1932. Amer. J. Hyg. 15: 319. 



193. Wagener, E. H. 1923. Univ. Calif. Publ. Zool. 20: 477. 



194. 1924. Univ. Calif. Publ. Zool. 26: 15. 



195. Wallace, J. M. and A. Wormall 1931. Parasitol. 23: 346. 



196. Warren. J. and A. B. Sabin 1942. Proc. Soc. Exp. Biol, ir Med. 51: H. 



197. Yoeli, M. 1948. Amer. J. Trop. Med. 28: 387. 



197a. Yount, E. H., Jr. and L. T. Coggeshall 1949. Amer. J. Trop. Med. 29: 701. 



198. Yorke, W. and J. W. S. Macfie 1924. Trans. Roy. Soc. Trop. Med. & Hyg. 18: 13. 



199. Zuckerman, A. 1945. /. Inf. Dis. 77: 28. 



