202 BIOLOGY OF THE PROTOZOA 



SPECIAL BIBLIOGRAPHY. 



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Degen, A. : 1905, Untersuchungen iil)er die Kontraktile Vacuolen und die Waben- 

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HowLAND, R. B.: 1924, Experiments on the Contractile Vacuole of Amwba verru- 

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Jennings, H. S. : 1906, Behavior of the Lower Organisms. 



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Nassonov, D.: 1924, Der Exkretionsapparat (Kontraktile Vacuolen) der Protozoa 

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Nirenstein, E.: 1905, Beitriige zur Ernahrungsphysiologie der Protisten, Ztschr. 

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Taylor, C. V.: 1923, The Contractile Vacuole in Euplotes; an Example of the Sol- 

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Ternetz, C: 1912, Beitriige zur Morphologie und Physiologic von Eughna gracilis 

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Zumstein, H.: 1900, Zur Morphologie und Physiologic der Euglena gracilis Klehs, 

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