GROWTH 563 



1936b. Recherches sur la croissance de Poly/o»jella uvella. L'influence 



de la concentration des substances nutritives. C. R. Soc. Biol. Paris, 122: 

 776-79. 



Roux, J. 1901. Faune infusorienne des eaux stagnantes des environs de 



Geneve. Mem. Inst. nat. genev., Vol. 19. 142 pp. 

 Russell, J. 1937. A photoelectric cell circuit with a logarithmic response. Rev. 



sci. Instrum., 8: 495-96. 

 Schmalhausen, I., and E. Syngajewskaja. 1925. Studien iiber Wachstum und 



DifFerenzierung. I. Die Individuelle Wachstumskurve von Paramecium 



caudatinn. Roux Arch. Entwkmech. Organ., 105: 711-17. 

 Shapiro, H. 1935a. Nomogram for centrifugal speed. Industr. Engng. Chem., 



7: 25. 



1935b. The validity of the centrifuge method for estimating aggregate 



cell volume in suspensions of the eggs of the sea-urchin Arhacia 

 punctidata. Biol. Bull., 68: ^6yil. 



1937. The viscosimeter method for determination of cell concentration 



in suspensions of living cells. Anat. Rec, 70(Suppl.) : 110. 



Simpson, J. Y. 1902. The relation of binary fission to variation. Biometrika, 



1: 400-7. 

 Smith, J. A. 1938. Some effects of temperature on the reproduction of 



Chilomonas Paramecium. Biol. Bull. 75: 336-37. 



1939. Effects of temperature on starch & fat in Chilomonas. Coll. Net, 



14: 35-36. 



Snell, S. D. 1929. An inherent defect in the theory that growth rate is con- 

 trolled by an allelocatalytic process. Proc. nat. Acad. Sci. Wash., 15: 



274-81. 

 Spurr, W. A. 1937. A graphic method for measuring seasonal variation. 



J. Amer. statist: Ass., 32: 281-89. 

 Steinhaus, E. A., and J. M. Birkeland. 1939. The senescent phase in ageing 



cultures and the probable mechanisms involved. J. Bact., 38: 249-61. 

 Stier, T. J. B., M. I. Newton, and H. Sprince. 1939- Relation between the 



increase in opacity of yeast suspensions during glucose metabolism and 



assimilation. Science, 89: 85-86. 

 Sweet, H. E. 1939. A micro-population study of Euglena gracilis Klebs in 



sterile, autotrophic media and in bacterial suspensions. Physiol. Zool., 



12: 173-200. 

 Taylor, C V., and A. G. R. Strickland. 1938. Reactions of Colpoda duodenaria 



to environmental factors. I. Some factors influencing growth and 



encystment. Arch. Protistenk., 90: 396-409. 

 Teissier, G. 1928. Croissance des populations et croissance des organismes. 



Ann. Physiol. Physicochim. biol., 4: 342-86. 



1934. Dysharmonies et discontinuites dans la croissance. Paris. 



1937. Les Lois quantitatives de la croissance. Paris. 



Tippett, L. H. C. 1932. A modified method of counting particles. Proc. roy. 

 Soc, A137: 434-46. 



