REPRODUCTION OF THE HYPOTRICHOUS INFUSORIA 233 



LITERATURE CITED 



Additional literature bearing upon the life history of the Protozoa is given in 

 Part I of these studies. 



Baitsell, G. A. 1912 Experiments on the reproduction of the hypotrichous 

 Infusoria. I. Conjugation between closely related individuals of 

 Stylonichia pustulata. Jour. Exp. Zool., vol. 13, no. 1. 



Calkins, G. N. 1902 Studies on the life history of Protozoa. I. The life-cycle 

 of Paramaecium caudatum. Archiv f. Entw. der Org., Bd. 15, no. 1. 



1904 Studies on the life history of Protozoa. IV. Death of the 

 A-series of Paramaecium caudatum. Conclusions. Jour. Exp. Zool., 

 vol. 1, no. 3. 



1913 Further light on the conjugation of Paramecium. Proc. Soc. 

 Exp. Biol, and Med., vol. 10, no. 3. 



Calkins, G. N., and Gregory, L. H. 1913 Variations in the progeny of a 

 single ex-conjugant of Paramaecium caudatum. Jour. Exp. Zool., vol. 

 15, no. 4. 



Jennings, H. S. 1912 Age, death and conjugation in the light of work on the 

 lower organisms. Pop. Sci. Monthly, vol. 80, no. 6. 



Jennings, H. S., and Hargitt, G. T. 1910 Characteristics of the diverse races 

 of Paramaecium. Jour. Morph., vol. 21, no. 4. 



Woodruff, L. L. 1905 An experimental study on the life history of hypotri- 

 chous Infusoria. Jour. Exp. Zool., vol. 2, no. 4. 



1911 Evidence on the adaptation of paramaecia to different environ- 

 ments. Biol. Bull., vol. 22, no. 1. 



1912 a Observations on the origin and sequence of the protozoan fauna 

 of hay infusions. Jour. Exp. Zool., vol. 12, no. 2. 



1912 b A five-year pedigreed race of Paramaecium without conjuga- 

 tion. Proc. Soc. Exp. Biol, and Med., vol. 9, no. 5. 



1913 Cell size, nuclear size and the nucleo-cytoplasmic relation dur- 

 ing the life of a pedigreed race of Oxytricha fallax. Jour. Exp. Zool., 

 vol. 15, no. 1. 



