REFERENCES TO LITERATURE 



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Hage. 1920. Ueber die Diagnose der Amobenruhr. Deutsche Med. 

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Harris (H. F.). 1898. AmcEbic dysentery. Amer. Journ. Med. 

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Haughwout (F. G.). 1918. The tissue-invasive powers of the 

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Haughwout (F. G.). 1921. A case of human coccidiosis etc. 

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Haughwout (F. G.) and Leon (W. de). 1919. On the ingestion 

 of erythrocytes by Pentatrichomonas sp., found in a case of 

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Hecker (F.). 1916, Experimental studies with Endamoeha Gros. 

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Hegner (R. W.). 1922a. The systematic relationship of Giardia 

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Hegner (R. W.). 1922b. A comparative study of the giardias 

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Hegner (R. W.). ig2T,a. The effects of changes in diet on the 

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Hegner (R. W.) 1923b. Giardias from wild rats and mice and 

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Hegner (R. W.). 1923c. Nuclear division within the cysts of the 

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Hegner (R. W.). 1924a. Infection experiments with Tricho- 

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Hegner (R. W.). 1924b. The relations between a carnivorous 

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