Bibliography 219 



Ivanic, M. 1927 Ueber den Kannibalismus bei Amoeba verrucosa 

 (Ehrbg.), nebst Bemerkungen iiber den Kannibalismus bei Pro- 

 tozoan im allgemeinen. Zool. Anz., 74, 313-321. 



Jacobs, M. H. 1922 The effects of carbon dioxide on the consistency 

 of protoplasm. Biol. Bull., 42, 14-30. 



Jahn, T. L. 1929 Studies on the physiology of the euglenoid flagel- 

 lates. I. The relation of the density of population to the growth 

 rate of Euglena. Biol. Bull., 57, 81-106. 



Jennings, H. S. 1904 Contributions to the study of the behavior of 

 lower organisms. Cam. Inst. Wash., Publ. No. 16, Paper VI. 



Jennings, H. S. 1908a Heredity, variation and evolution in pro- 

 tozoa. I. The fate of new structural characters in Paramecium, in 

 connection with the problem of the inheritance of acquired char- 

 acters in unicellular organisms. Jour. Exp. Zool., 5, 577-632. 



Jennings, H. S. 1908b Heredity, variation and evolution in Pro- 

 tozoa. II. Heredity and variation of size and form in Para- 

 mecium, with studies of growth, environmental action and selection. 

 Proc. Amer. Phil. Soc, 47, 393-546. 



Jennings, H. S. 1910 What conditions induce conjugation in Para- 

 mecium? Jour. Exp. Zool., 9, 279-300. 



Jennings, H. S. 191 1 Assortative mating, variability and inheritance 

 of size, in the conjugation of Paramecium. Jour. Exp. Zool., 11, 

 1-134. 



Jennings, H. S. 1916 Heredity, variation and the results of selec- 

 tion in the uniparental reproduction of Difflugia corona. Genetics, 

 1, 407-534. 



Jennings, H. S. 1920 Life and death, heredity and evolution in uni- 

 cellular organisms. Boston. 233 pp. 



Jennings, H. S., and Hargitt, G. T. 1910 Characteristics of the di- 

 verse races of Paramecium. Jour. Morph., 21, 495-561. 



Jennings, H. S., and Lashley, K. S. 1913a Biparental inheritance 

 and the question of sexuality in Paramecium. Jour. Exp. Zool., 

 14, 393-466. 



Jennings, H. S., and Lashley, K. S. 1913b Biparental inheritance of 

 size in Paramecium. Jour. Exp. Zool., 15, 193-199. 



Jensen, P. 1893 Die absolute Kraft einer Flimmerzelle. Arch, 

 gesam. Physiol., 54, 537-551. 



Jensen, P. 1895 Ueber individuelle physiologische Unterschiede 

 zwischen Zellen der gleichen Art. Arch, gesam. Physiol., 62, 172- 

 200, 



Jickeli, C. F. 1902 Die Unvollkommenheit des Stoffwechsels als 

 Veranlassung zur Vermehrung, Wachstum, Differentzierung, 

 Riickbildung und Tod der Lebewesen im Kampf urns Dasein. Ber- 

 lin. 353 S. 



