398 RESPIRATORY METABOLISM 



Chambers, R. 1933. An analysis of determinations of intracellular reduction 



potentials. Cold Spring Harbor Symp. Quant. Biol., 1: 205-13. 

 Clark, W. M. 1934. The potential energies of oxidation-reduction systems and 



their biochemical significance. Medicine, 13: 207-50. 

 Cleveland, L. R. 1925. Toxicity of oxygen for Protozoa in vivo and in vitro. 



Biol. Bull. 48: 455-68. 

 Cleveland, L. R., S. R. Hall, E. P. Sanders, and Jane Collier. 1934. The wood- 

 feeding roach Cryptocercus, its Protozoa, and the symbiosis between 



Protozoa and roach. Mem. Amer. Acad. Arts Sci., 17: 185-342. 

 Cohen, Barnett. 1933. Reactions of oxidation-reduction indicators in biological 



material, and their interpretation. Cold Spring Harbor Symp. Quant. Biol., 



1: 214-23. 

 Cohen, R. A., and R. W. Gerard. 1937. Hyperthyroidism and brain oxida- 

 tions. J. cell. comp. Physiol., 10: 223-40. 

 Cook, S. F. 1932. The respiratory gas exchange in Teniiops/s nevadensis. Biol. 



Bull. 63: 246-57. 

 Daniel, G. E. 1931. The respiratory quotient of Balantid'uini col'i. Amer. J. 



Hyg., 14: 411-20. 

 Dixon, M. 1934. Manometric methods as applied to the measurement of cell 



respiration and other processes. London. 

 Dubos, R. 1929. The relation of the bacteriostatic action of certain dyes to 



oxidation-reduction processes. J. exp. Med., 49: 575-92. 

 Duryee, W. R. 1936. A modified microrespirometer. Z. vergl. Physiol., 23: 



208-13. 

 Efimoff, W. W., N. J. Nekrassaw, and Alexandra W. Efimoflf. 1928. Die 



Einwirkung des Oxydationspotentials und der H-Ionenkonzentration auf 



die Vermehrung der Protozoen und Abwechselung ihrer Arten. Biochem. 



Z., 197: 105-18. 

 Elliott, A. M. 1939. A volumetric method for estimating population densities 



of Protozoa. Trans. Amer. micr. Soc, 58: 97-99. 

 Emerson, R. 1929. Measurements of the metabolism of two protozoans. J. 



gen. Physiol., 13: 153-58. 

 Faure-Fremiet, E., C. Leon, A. Mayer, and L. Plantefol. 1929. Recherches sur 



le besoin d'oxygene libre. L'oxygene et les mouvements des para- 



mecies. Ann. Physiol. Physicochim. biol., 5: 633-41. 

 Fenn, W. O. 1928. A new method for the simultaneous determination of 



minute amounts of carbon dioxide and oxygen. Amer. J. Physiol., 84: 



110-18. 

 Fenyvessy, B. von, and L. Reiner. 1924. Untersuchungen iiber den respira- 



torischen Stoffwechsel der Trypanosomen. Z. Hyg. Infektkr., 102: 109- 



19. 

 1928. Atmung und Glykolyse der Trypanosomen. II. Biochem. Z., 202: 



75-80. 



