AUTHOR INDEX 1197 



(with Pringsheim, P., Pollack, M., and Terwood-Lad, D.): Quenching of phos- 

 phorescence a sensitive way of measuring O; production in photosynthesis, 851. 



Freeland, O. R.: CO2 penetration through cuticle, 911. 



French, C. S.: Absorption spectrum of bacteriochlorophyll, 616-617; spectra of purple 

 bacteria, 692, 693, 702; carotenoid bands in purple bacteria, 707; effect of H2 

 pressure on photoreduction of CO2 in bacteria, 944-945; sigmoid shape of light 

 curves in bacteria, 948, 964; quantum yield of purple bacteria, 1124-1125, 1126- 

 1127, 1332; action spectrum of purple bacteria, inactivity of carotenoids?, 1186- 

 1188. See also Franck, J.; Rabideau, G. S. 



and Koski, V. M.: Absorption spectra of phycobilins, 664-665; absorption band 



of protochlorophj'll in leaves, 705; spectrophotometric study of fluorescence of 

 phycobilins, 799-801; protochlorophyll fluorescence in partially green leaf, 811; 

 light curves of phycobilin fluorescence in red algae linear when those of chlorophyll 

 curved, 1051. 



and Rabideau, G. S. : Quantum yield of Hill reaction in chloroplasts and Chorella 



cells, 1094, 1128-1130. 



(with Van Norman, R. W., Macdowall, F. D., and Koski, V. M.): Spectrophoto- 

 metric study of fluorescence of blue-green and red algae, 806, 807, 809, 811-812; 

 phycoerythrin-sensitized fluorescence of chlorophyll in red algae, 815. 



Fuller, H. J. : CO2 concentration near ground, 902-903. 



Gabrielsen, E. K.: CO2 compensation point, 899; re-utilization of respiratory CO2, 900- 

 901; light curves of Sinapis, 966; of sun and shade leaves of Fraxtnus, 967; of 

 Triticum, 967; high saturating intensity of sun leaves, 987; rate of photos3-n- 

 thesis of Sinapis under natural conditions, 998; quantum yield measurements on 

 leaves, 1188-1189; equal saturation rates in light of different colors, 1145; con- 

 tribution of ultraviolet to photosj^nthesis in sunlight, 1153; monochromatic light 

 curves, 1161-1162; screening effect of red leaf pigments, 1165. 



and Steemann-Nielsen, E.: Photosynthesis of diatoms in blue and red light, 1177. 



Galanin, M. D. See Vavilov, S. I. 



Gavrilova, V. A. See Evstigneev, V. B. 



Geiger, M.: Closure of stomata as cause of midday depression, 875. 



Gessner, F.: Absence of midday depression in aquatic plants, 876; photosynthesis of 

 aquatic plants constant if medium effectively renewed, 878, 879; leaf shape and 

 CO2 exhaustion effects, 905; light curves of higher aquatic plants, 967; of shade 

 and sun plants, 988; maximum rates of aquatic plants, 991, 992, 1002; no light 

 inhibition of shade-grown Elodea, 994. 



Giltay, E.: Rate of photosynthesis of tropical plants, 1001. 



Green, L. See Emerson, R. 



Greenfield, S. S.: Light curves of Cu + + and Ni + + inhibited Chlorella, 975. 



Gunjikar, L. K. See Dastur, R. H. 



Guttenberg, H. von, and Buhr, H.: Carbohydrate accumulation as cause of midday 

 depression, 875. 



H 



Hagenbach, A. : Red shift of chlorophyll bands in leaves, 697. 



, Auerbacher, F., and Wiedemann, E. : Visible and ultraviolet absorption spectra of 



chlorins and porphins, 606, 629. 

 Harder, R.: Modified law of limiting factoi-s, 862; adaptation to light intensity and 



temperature, 873; time course of photosynthesis under constant conditions, 877- 



