580 AUTHOR INDEX 



Stauffer, J. F. See Emerson, R. L.; Fan, L. S. 



Stokes, G. G.: Discovery of multiplicity of leaf pigments, 399, 402, 412; existence of a 

 third chlorophyll, 406. 



StoU, A.: Chlorophyll as intermediate photoreductant and photoxidant in photosyn- 

 thesis, 555; hydrogen-hydroxyl exchange as primary photoprocess in photosyn- 

 thesis, 151, 555. See also Willstatter, R. 



and Wiedemann, E.: Allomerization of chlorophyll, 458, 461-462; preparation and 



properties of "chloroplastin," 385-387. 



Strain, H. H.: Leaf carotenols, 412^16, 470, 472. See also Manning, W. M. 



and Manning, W. M.: Chlorophyll c (chlorofucin) in algae, 406; chlorophyll 



isomers a' and b', 403, 444. 



Svedberg, Th., Katsurai, T., and Eriksson-Quensel, I. B.: Molecular weight of phyco- 

 bilins, 478-479. 



T 



Timiriazev, C: Chlorophyll as chemical catalyst in photosynthesis, 548-550; chlorophyll 

 spectrum and Darwinian theory, 427; reduction of chlorophyll, 457-458. 



Treboux, O.: Feeding of algae with organic compounds, 257, 261, 266; inhibition of photo- 

 synthesis by high osmotic pressure, 334. 



Trelease, S. F., Pratt, R., and coworkers: Photosynthesis in heavy water, 295-298. 



Tswett, M.: Chromatographic separation of chlorophylls o and b, 402. 



U 



Umbreit, W. W. See Emerson, R. L.; Fan, C. S.; Vogler, K. G. 



V 



Van der Honert. See Honert, T. van. 



Van der Paauw. See Paauw, P. van. 



Van Hille. See Hille, J. van. 



Van Niel, C. B., and coworkers: GeneraUzed equations of photosynthesis, 105; meta- 

 bolism of purple and green bacteria, 100-111; oxidation of water as primary 

 photochemical process in photosynthesis, 73, 155-157; photosynthesis as oxida- 

 tion-reduction, 53; primary photochemical process in bacteria, 168-170. 



Vermeulen, D. See Wassink, E. C. 



Vickery, H. B., Pucher, G. W., and coworkers: Acid metabolism of plants, 251, 263, 

 264, 267-269. 



Vinogradsky, S.: Discovery of chemosynthesis, and metabolism of colorless sulfur 

 bacteria, 100-103, 111, 113, 119. 



Vogler, K. G., and Umbreit, W. W.: Metabolism of Thiobacillus ihiooxidans, 113-115, 

 201-202. 



W 



Warburg, O. : Carbonate-bicarbonate buffers as media for the study of photosynthesis, 

 177-179; cyanide-resistant residual photosynthesis, 302-303, 308-309, 563, 569- 

 570; inhibition of photosynthesis by cyanide, 283, 301-303, 305, 531; inhibition 

 of photosynthesis by excess oxygen, 328, 531; inhibition of photosynthesis by 

 urethans, 284, 321-324. 



and Negelein, E.: Photochemical nitrate reduction in plants, 538-541. 



Wassink, E. C, Katz, E., and Dorrestein, R.: Bacteriochlorophyll extracts 170, 389. 

 See also Katz, E. 



, Vermeulen, D., Reman, G. H., and Katz, E.: Inhibition of photosynthesis by 



cyanide, 302, 310; inhibition of photosynthesis by excess oxygen, 328-329, 531; 

 inhibition by urethan, 322-323. 



