916 



LIGHT AND LIFE 



turn yield of himinol for various pH 

 values, 204; of zinc tetraphenylpor- 

 phine, decay of, 176 

 Chemiluminescence and fluorescence: 

 maxima for luminol in various sol- 

 vents, 194; spectra of zinc tetraphenyl- 

 porphine, 178; values for the phthala- 

 zinediones, 186 

 Chemiluminescent reactions: 192; of 

 luminol in water, 186; in organic sol- 

 vents, 191 

 Chemiluminescent Zn-porphyrin-catalyz- 

 ed decomposition of tetralin hydro- 

 peroxide, kinetics of: 177 

 Chlamydomonas moeivusii: 434; deriva- 

 tive absorption spectrum of, 451 

 Chlorella pyrenoidosa: 348, 434; absorp- 

 tion spectrum of an "apple green mu- 

 tant." 482; fluorescence spectra of, 349 

 Chlorin: 326 



p-Chlorophenyl dimethyl urea, effect on 

 growth of etiolated pea stem sections: 

 701 

 Chlorophyll: bacteriochlorophyll and 

 protochlorophyll, relation between, 

 318; energy transfer phthalocyanine as 

 a model for, 332; models, photo- 

 chemistry of, 318; photophysical and 

 photochemical reactions of, 317; 

 photosensitized transformations, 329; 

 scheme for reaction with a haem pro- 

 tein, 484; structural formula, 319 

 Chlorophyll A: 448; different forms of, 



378; three forms of, 451 

 Chlorophyll B: 453; visible region ab- 

 sorption curves of, 62 

 Chloropiiylls: 61 

 Chloroplast cytochromes: 424 

 Ciiloroplast and mitochondrial cyto- 

 dironics, oxidation-reduction poten- 

 tials of some: 432 

 Chloroplasts: CO, assimilation by illu- 

 minated isolated, 493; decrease in 

 ATP level by illumination, 606; iso- 

 lated, carbohydrate synthesis by, 497; 

 low-temperature difference spectrum, 

 428; oxidation-reduction reactions in, 

 576 



Chromatic transients, action spectra for: 

 460 



Chromatium: 9 



Chromalium cytochromes, reversible oxi- 

 dation of: 517 



Chrysomela: 772 



Chymotrypsin, emission and excitation 

 spectra: 96 



Cimbex: 756 



CoUybia velutipies: 262 



Color vision: of fly (Calliphora), 786; 

 in goldfish, electrophysiological evi- 

 dence for, 795; in honeybee. Apis mel- 

 lifera, 779; of insects, presence of, 771 



Configurations in formaldehyde and 

 molecular orbitals: 14 



Cresol and tyrosine, polarization spec- 

 tra: 88 



Cyanopsin: 725; absorption spectra of, 

 743 



/3 cyclocitral: 32; absorption spectra of, 

 33 



Cypridi7m: 211; luciferin, 258; structure 

 of, 213 



Cytochrome bg some characteristics of: 

 425 



Cytochrome f: 402; some characteristics 

 of, 425; spectra of highly purified, 425 



Cytochrome pigments in photosynthetic 



bacteria: 436 

 Cytochromes: chloroplast, 424; Chroma- 

 tium, reversible oxidation of, 517; 

 light-induced oxidations of, 515; oxi- 

 dation-reduction potential of some 

 chloroplast and mitochondrial, 432; 

 reduced, of Chromatium by thiosul- 

 fate, 575 



D 



Desamino-DPNH, fluorescence excitation 

 and emission spectra of: 113 



Diatomic molecule, electronic states of: 

 28 



Diazines: 55 



niflcrcncc spectra in photosynthesis: 

 400; of Rhodnspirillum rubrum, 439; 

 of R. spheroides, 438 



Diglycerophosphate, effect of illumina- 

 tion upon concentration of: 393 



