SLlilECT JM)i:X 



1) 1 9 



response with small change in wave- 

 length. 804 



(;conKtrv of excited states of molecules: 

 18 



Geottitpcs: 772 



Ciihberellic acid: 695 



(;ivceraldchydc-;5-pliospIiatc deliydroge- 

 nase: 1 17 



Glycerol phosphate dehydrogenase: 

 fluorescence emission bands of, 123; 

 fluorescence emission band of, 125 



Xglycyl tryptophan, polarization spec- 

 tra of: 91 



Gonyaulax bioluminescence, ionic effects 

 on: 294 



Gonyauhix luciferase: purification of, 

 298; rates of inactivation at several 

 difl'erent temperatures, 303 



Go)i\aiiIax luminescent reaction, oxygen 

 requirement in: 297 



Gonyauhix nionilata: 294 



Gonyaulax polyedra: 294 



Goldfish, intiaretinal recording from: 

 801 



Goldfish retina, structure of: 798 



Grana, electron micrograph of: 525 



H 



Heme, excited states: 82 

 N-Heterocyclics: spectra of, 54; n -> tt* 



transitions in, 37 

 Heteromolecules, state symmetries and 



electronic dipole transition selection 



rules for: 45 

 Hexahydroporphin: 326 

 Hill reaction, effect of carbonate on: 609 

 Histioteutliis: 756 

 Hoplophorus typus: 756 

 Human serum albumin, polarization 



spectra of: 101 

 Hydrogen peroxide, measurement of: 



619 

 Hydrogenase, pyridine nucleotide re- 

 duction by: 529 

 Hydrogen gas, photoproduction of: 531 

 Hydrogen transfer reactions catalyzed 



by chlorophyll: 329 

 Hypociiromism in DNA: 60 

 Hypsochromic: 32 



Indole: polarization of, 93; polarization 

 sped rum of. 89; potential energy, sur- 

 faces in, 90 

 Indole acetic acid, eflect of growth: 694 

 Insulin, polarization spectra: 96 

 Interactions involving dipole moments: 



24 

 Intermolecular binding energy: 22 

 Inlernode length and growth: 691 

 Intraretinal recording from goldfish: 801 

 lodopsin: 725 

 Isoriiodopsin: 735 



K 



Kinetics of a cyclic system: 408 



Lactic acid dehydrogenase: fluorescence 

 emission bands, 123, 124; fluorescence 

 excitation, 124; polarization spectra of, 

 100 



Lactic dehydrogenase-DPNH complex, 

 excitation of DPNH fluorescence: 119 



Lemna gibba: 673 



Lemua perpusiUa: 673; inhibition of 

 flowering, 677 



Libellula: 772 



Lifetime of the excitation: 87 



Light in COo assimilation: 492 



Liglit-dependent lipid metabolism: 392 



Light from luciferyl-adenylic acid: 225 



Light emission: effect of inorganic pyro- 

 phosphatase and pyrophosphate on, 

 223; effect of pH and buffers, 235; re- 

 sponse to ATP, 222 



Light, pigments and photosynthesis: 447 



Light signals from whole spinach chloro- 

 plasts: 341 



Limulus: 707; intracellular recording 

 from a visual cell, 708 



Lipid metabolism, light dependent: 392 



Lipoic dehydrogenase: 138 



Living organisms and physical models: 

 3 



"Lone Pair" orbitals in molecules, types 

 of: 33 



Low absorption intensity: 52 



