676 INTESTINAL PROTOZOA AND HOST-PARASITE RELATIONS 



in the course of infection with coccidia worth pointing out inasmuch as in most 

 protozoan infections the prepatent period is much shorter than the incubation period. 



REFERENCES TO LITERATURE 



Acton, H. W., and Knovvles, R.: "Of Entamoeba histolytica Carriers," Indian M. Gaz., 59, 



440-44. 1924. 

 Aguilar, R.: "The Treatment of Balantidium coli," 14th Ann. Rep. Med. Dep. United Fruit 



Co., 1925, pp. 246-48. 1926. 

 Andrews, J. M.: "Host-Parasite Specificity in the Coccidia of Mammals," /. ParasitoL, 13, 



183-94. 1927. 

 Baetjer, W. A., and Sellards, A. W.: "The Behavior of Amoebic Dysentery in Lower 



Animals, etc.," Bull. Johns Hopkins Hosp., 25, 237-41. 1914. 

 Boeck, W. C: "The Thermal Death-Point of the Human Intestinal Protozoan Cysts," 



Am. J. Hyg., i, 365-87. 1921a. 

 Boeck, W. C: "On the Longevity of Human Intestinal Protozoan Cysts," ibid., pp. 527-40. 



1921^. 

 Boeck, W. C, and Drbohlav, J.: "The Cultivation of Endamocba histolytica," ibid., 5, 371- 



407. 1925. 

 Boeck, W. C, and Stiles, C. W.: Studies on Various Intestinal Parasites (Especially Amoebae) 



of Man, Hyg. Lab., Washington, Bull. ijj. Pp. 202. 1923. (Contains extensive discus- 

 sion of the nomenclature of the intestinal protozoa.) 

 Boyers, L. M., Kofoid, C. A., and Swezy, O.: "Chronic Human Amebiasis," J. A.M. A., 85, 



1441-47. 1925. 

 Brumpt, E.: "Demonstration du role pathogene du Balantidium coli, etc.," Compt. rend. Soc. 



de bioL, 67, 103. 1909. 

 Clark, H. C: "The Distribution and Complications of Amoebic Lesions Found in 186 



Postmortem Examinations," Proc. Internal. Conf. Health Prob. in Trop. Amer., pp. 365- 



79. Boston: United Fruit Co., 1924. 

 Connal, A.: "Observations on the Pathogenicity of Isospora hominis, Rivolta, emend 



Dobell," Tr. Roy. Soc. Trop. Med. &" Hyg., 16, 223-45. 1922. 

 Craig, C. F.: "The Symptomatology of Infection with Endamocba histolytica in Carriers," 



J.A.M.A., 88, 19-21. 1927. 

 Cra'g, C. F. : "Observations upon the Hemolytic, Cytolytic, and Complement-Binding Prop- 

 erties of Extracts of Endam^eba histolytica." Am. J. Trop. Med., 7, 225-40. 1927. 

 Dobell, C: The Amoebae Living in Man: a Zoological Monograph. Pp. 155. London, 1919. 

 Dobell, C, and O'Connor, F. W.: The Intestinal Protozoa of Man. Pp. 211. London, 192 1. 

 Haughwout, F. G.: "The Tissue-Invasive Powers of the Flagellated and Ciliated Protozoa 



with Especial Reference to Trichomonas intestinalis," Philippine J. Sc, B, 13, 217-59. 



1918. (A critical review.) 

 Hegner, R. W.: "The Effects of Changes in Diet on the Incidence, Distribution and Num- 

 bers of Certain Intestinal Protozoa of Rats," Am. J. Hyg., 3, 180-200. 1923. 

 Hegner, R. W.: "Infection Experiments with Trichomonas," ibid., 4, 143-51. 1924a. 

 Hegner, R. W.: "The Relations between a Carnivorous Diet and Mammalian Infections with 



Intestinal Protozoa," ibid., pp. 393-400. 19246. 

 Hegner, R. W.: "A Carnivorous Diet in the Treatment of Flagellate Diarrhea," J. A.M. A., 



83, 23-24. 1924c. 

 Hegner, R. W.: "Intestinal Flagellates in Tropical America," Am. J. Trop. Med., 5, 239- 



45. 1925a. 

 Hegner, R. W.: "Trichomonas vaginalis Donne," Am. J. Hyg., 5, 302-8. 19256. 



