506 PROTOZOOLOGY 



Toxoplasma appears to be common in birds. For example, in a 

 survey on the blood parasites of birds on Cape Cod, Herman (1938) 

 found the organism in 11 species of birds examined by him. In the 

 past ten years a considerable amount of information has accumu- 

 lated on the organisms which attack and produce a disease (toxoplas- 

 mosis) in man. Sabin (1942) gives an excellent digest on it. 



References 



Boyd, M. F. 1930 An introduction to malariology. Cambridge. 



1940 On strains or races of the malaria parasites. Amer. 



Jour. Trop. Med., Vol. 20. 



and W. K. Stratman-Thomas 1933 A controlled technique 



for the employment of naturally induced malaria in the therapy 

 of paresis. Amer. Jour. Hyg., Vol. 17. 



Chen, T. T. 1944 The nuclei in avian malaria parasites. I. The 

 structure of nuclei in Plasmodium elongatum, with some con- 

 siderations on technique. Amer. Jour. Hyg., Vol. 40. 



CoATNEY, G. R. and R. L. Roudabush 1937 Some blood parasites 

 from Nebraska birds. Amer. Midi. Nat., Vol. 18. 



Dennis, E. W. 1932 The life-cycle of Babesia higemina (Smith and 

 Kilbourne) of Texas cattle-fever in the tick, Margaropus an- 

 nulatus (Say). Uni. Calif. Publ. Zool., Vol. 36. 



Hartman, E. 1927 Three species of bird malaria. Arch. f. Pro- 

 tistenk., Vol. 60. 



Hewitt, R. 1940 Bird malaria. Amer. Jour. Hyg., Monogr. Ser., 

 No. 15. 



Huff, C. G. 1942 Schizogony and gametocyte development in 

 Leucocytozoon simondi, and comparison with Plasmodium and 

 Haemoproteus. Jour. Infect. Dis., Vol. 71. 



James, S. P. and P. Tate 1938 Exo-erythrocytic schizogony in 

 Plasmodium gallinaceum Brumpt, 1935. Parasitology, Vol. 30. 



O'RoKE, E. C. 1934 A malaria-like disease of ducks caused by 

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 Conservation, Bui., No. 4. 



Porter, R. J. and C. G. Huff 1940 Review of the literature on 

 exo-erythrocytic schizogony in certain malarial parasites and 

 its relation to the schizogonic cycle in Plasmodium elongatum. 

 Amer. Jour. Trop. Med., Vol. 20. 



Ross, R. 1928 Studies on malaria. London. 



Sabin, A. B. Toxoplasmosis. A recently recognized disease of hu- 

 man beings. In: Advances in pediatrics, edited by A. G. De Sanc- 

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Simmons, J. S. et al. 1939 Malaria in Panama. Amer. Jour. Hyg., 

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Stratman-Thomas, W. K. 1940 The influence of temperature on 

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Wenyon, C. M. 1926 Protozoology. Vol. 2. London and Baltimore. 



