144 PROTOZOOLOGY 



Weineck, E. : (1934) Die Celluloseverdauung bei den Ciliaten des 

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Whipple, G. C: (1927) The microscopy of drinking water. 4th ed. 

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Wichterman, R. : (1948) The biological effects of X-rays on mating 

 types and conjugation of Paramecium, bursaria. Biol. Bull., 94: 

 113. 



(1948a) The presence of optically active crystals in Para- 

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Wilber, C. G.: (1945) Origin and function of the protoplasmic con- 

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 — — (1945a) The composition of the refractive bodies in rhizopod, 

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— (1946) Notes on locomotion in Pelomyxa carolinensis. Ibid., 

 65:318. 



and Slane, Gertrude M.: (1951) The effect of ultraviolet 



light on the protoplasm in Pelomyxa carolinensis. Ibid., 70:265. 

 Yocom, H. B.: (1934) Observations on the experimental adaptation 



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 Zeuthen, E. : (1948) Reduced weight and volume during starvation 



of the amoeba, etc. C. R. Lab. Carlesberg, Ser. Chim., 26:267. 

 Zingher, J. A.: (1934) Beobachtungen an Fetteinschliissen bei ei- 



nigen Protozoen. Arch. Protist., 82:57. 

 Zuelzer, M.: (1905) Ueber die Einwirkung der Radiumstrahlen auf 



Protozoen. Ibid., 5:358. 

 (1907) Ueber den Einfiuss des Meerwassers auf die pul- 



sierende Vacuole. Berlin. Sitz.-Ber. Ges. naturf. Freunde, p. 90. 

 (1927) Ueber Amoeba biddulphiae, etc. Arch. Protist., 57: 



247. 

 Zumstein, H.: (1900) Zur Morphologie und Physiologie der Euglena 



gracilis. Pringsheims Jahrb. wiss. Botanik., 34:149. 



