402 



SENESCENCE AND REJUVENESCENCE 



WOLTERECK, R. 



1911. " tiber Veranderung der Sexualitat bei Daphniden," Internal. Rev. 



d. ges. Hydrobiol. u. Hydrogr., IV. 

 WOODRUFF, L. L. 



1914. "On So-called Conjugating and Non-conjugating Races of Para- 



mecium," Jour, of Exp. Zool., XVI. 

 WOODRUFF, L. L., and ERDMANN, RHODA. 



1914. "A Normal Periodic Reorganization Process without Cell Fusion 



in Paramecium," Jour, of Exp. Zool., XVII. 

 WORONIN, HELENE. 



1908. "Apogamie und Aposporie bei einigen Farnen," Flora, XCVIII. 



