502 LORA.NDE LOSS WOODRUFF AND RH. ERDMANN 



Woodruff L. L. 1913 The effect of excretion products of Infusoria on the 

 same and on different species, with special reference to the protozoan 

 sequence in infusions. Jour. Exp. Zool. vol. 14. 



1914 So-called conj ugating and non-conj ugating races of Paramaecium. 

 Jour. Exp. Zool., vol. 16. 



Woodruff, L. L., and Baitsell, G. A. 1911 a The reproduction of Paramae- 

 cium aurelia in a constant culture medium of beef extract. Jour. Exp. 

 Zool., vol. 11. 



1911b Rhythms in the reproductive activity of Infusoria. Jour. Exp. 

 ^ Zool., vol. 11. 



1911 c The temperature coefficient of the rate of reproduction of 

 Paramaecium aurelia. Am. Jour. Physiol., vol. 29. 



Woodruff, L. L., and Erdmann, Rh. 1914 Complete periodic nuclear reorgan- 

 ization without cell fusion in a pedigreed race of Paramaecium. Proc. 

 Soc. Exper. Biol, and Med., vol. 11, Feb. 18. 



ZwEiBAUM, J. 1912 La conjugaison et ladifferenciation sexuelle chez les Infu- 

 soires (Enriques et Zweibaum). V. Les conditions n^cessaires et suffi- 

 santes pour la conjugaison de Paramaecium caudatum. Arch, f . Pro- 

 tistenk., Bd. 26. 



