630 Lorande Loss Woodruff. 



Maupas, E., '88. — Recherches experimentales sur la multiplication des Infusoires 



cilies. Arch. d. Z06I. exper. et gen., 2me sen, vi. 

 '89. — Le rejeunissement karyogamique chez les Cilies. Arch. d. zool. 



exper. et gen., 2me ser., vii. 

 Peters, A. W., '04. — Metabolism and Division in Protozoa. Proc. Amer. Acad. 



Arts and Sci., xxxix, 20. 

 Rywosch, D., '00. — Ueber die Bedeutung der Salz fiir das Leben der Organismen, 



Biol. Centralblatt, xx, 12. 

 Scott, J. W., '03. — Periods of Susceptibility in the Differentiation of Unfertilized 



Eggs of Amphitrite. Biol. Bull., v, I. 

 Simpson, J. Y., '01, i. — Observations on Binary Fission in the Life-history of 



Ciliata. Proc. Roy. Soc. Edinb., vol. xxiii. 

 '01, 2. — Studies in Protozoa. I. Notes on the Intimate Structure of 



Protozoa, as Exhibited by Intra-vital Staining. Proc. Scot. 



Microscopical Soc, iii, 2. 

 Stein, F., '83. — Der Organismus der Infusionsthiere. Leipzig. 

 Sterki, v., '78. — Beitrage zur Morphologie der Oxytrichinen. Z. w. Z., xxxi. 

 Tow^LE, Elizabeth W., '04. — A Study of the Effects of Certain Stimuli, Single 



and Combined, upon Paramoecium. Amer. Jour, of Physiol., 



xii, 2. 

 Verw^orn, M., '97. — Allegemenine Physiologic. 



Wallengren, H., '01. — Inanitionserscheinungen der Zelle. Zeit. f. allg. Physiolo- 

 gic, i, I. 

 Weismann, a., '84. — Ueber Leben und Tod. 

 Wilson, E. B., '00. — ^The Cell in Development and Inheritance. Second ed. 



Columbia University Press. 



