5o8 RESEARCH IN PROTOZOOLOGY 



tropischen Fiebers (Malaria tropica). Arch. f. Protist. 35: 



139-153- 

 Perez, C. 1908. Sur Dub osc quia legeri, microsporidie nouvelle para- 

 site du Termes lucifugus, etc. C R. Soc. Biol. 65: 631. 

 Pessoa, S. B., and Correa, C. 1927. Sobre a disseminaqao de cystos 



de Giardia intcstinalis (Lambl) pelas baratas. Rev. Biol. Hyg. 



1:90-93. 

 PiCADO, C. 1921. Les bacteries des latex. C. R. Soc. Biol. 84: 552. 

 Plehn, M. 1924. Praktikum der Fischkrankheiten. Stuttgart. 

 PoissoN, R. 1924. Sur quelques Microsporidies parasites d'Arthro- 



podes. C. R. Acad. Sci. 178. 

 PoissoN, R. 1928. Sur une infection a Microsporidie chez la Nepe 



cendree (Hemiptere-Heteroptere). La reaction des tissus de 



riiote vis-a-vis du parasite. Arch. Zool. Exp. et Gen. 67. Notes 



et revue, no. 3. 

 PoNSELLE, A. 1923. La culture des trypanosomes et les conditions 



physical chimiques qui la determinent. Ann. Parasit. Hum. et 



Comp. 1 : 181. 

 Porter, A. 191 6. An enumerative study of the cysts of Giardia 



{Lamhlia) intestinalis in human dysenteric feces. Lancet. 



190: 1166-1167. 

 Porter, A. 191 9. A survey of the intestinal entozoa . . . observed 



among natives in Johannesburg. Mem. South African Inst. Med. 



Res. 11:39. 

 PoucHET, G. 1884. Sur un peridinien parasit (Gymnodinium pul- 



visculus et sa forme-mere). Atti. Soc. Tosc. Sc. Nat. Pisa, Mem. 



6(1) : 26-29. 

 Potter, L. A. 1928. Two species of Giardia from the rat. Amer. 



Journ. Hyg. 8 : 77-84. 

 Powell, A., and Kohiyar, A. J. 1920. A Bodo-Wkt flagellate per- 

 sisting in the urinary tract for five years. Proc. Roy. Soc. Med. 



13:1. 

 Pringault, E. 1920. fitude biologique de TricJwmonas intestinalis. 



Bull. Soc. Path. Exot. 13 : 800. 

 Prowazek, S. von. 1904. Untersuchungen iiber einige parasitischen 



Flagellaten. Arh. K. Gcsundheitsamt. 21 : 1-41. 

 Prowazek, S. von. 1912. Entamwha. Arch. f. Protist. 25:273. 

 Prowazek, S. von. 191 2. Die Malaria der Vogel. Handbuch. der 



pathogenen Protosocn. pp. 509-601. 

 Ratcliffe, H. L. 1927. The relation of Plasmodium falciparum to 



the human red blood cell as determined by sections. Amer. Journ. 



Trop. Med. 8:559-562. 

 Ratcliffe, H. L. 1928. The numbers of trichomonads in rats on 



diets of different protein content in relation to the pH and 



bacteria in the cecum. Amer. Journ. Hyg. 8:910-934. 

 Ray, C. 192 1. Hciemolytic test in kala-azar. Lnd. Med. Gas. 56: 



9-10. 



