Subject Index 



Abramis brama (Bream), 28 

 Absorption spectra (see also density 

 spectra), 13-23 

 definition of, 15 

 dependence on concentration of, 



15-16 

 distinction from density spectra of, 



15-16 

 measurement of, 19-21 

 of carotenoids, 132-134 

 of polyenes, 132-134 

 /9-Alanine, reaction with retinenCi, 106 

 Alewife {Pomolobus pseudoharengus), 



35-36 

 Alburnus lucidus (Bleak), 169, 171-175, 



178-179 

 Amacrine cells, 4 

 /^-Aminobenzoic acid, reaction with 



retinene,. 111 

 Amino compounds, reactions with 



retinenCi, 105-108 

 Amino groups, reaction with formal- 

 dehyde, 1 12 

 Amperometric titration of visual 



purple, 118-120 

 Amphibians, visual pigments of 

 Bull frog (Rana catesbiana), 30-31, 



33-34, 189 

 Common frog (R. temporarid), 



28-29, 186-190, 192-193 

 Edible frog (/?. esculentd), 30-31, 



189-191 

 Frog, 13, 25, 44, 51, 53, 60, 80-81, 

 84, 86-87, 89, 97, 99, 158, 176, 

 182-185, 199 

 Rana pipiens, 30-31, 33 

 Toad (Bombinaror bombinus), 28-29 

 Tree frog {Hyla arborea), 28-29 

 Amyl ammonium chloride, 10 

 Anguilla rostrata (Eel), 35-37 

 Anterior chamber, 1-2 

 Anthracene, photochemistry of, 63-64 

 Ape {Kalitrichus sabacus), 28 

 Aqueous humour, 1 

 Arginine, reaction with retinenCi, 106 

 Astacene, 102-103 

 Astaxanthine, 97, 123 



Bass, calico {Pomoxis sparoides), 

 34-36. 40 



Bass, sea (CentropHstes striatus), 33- 



34,36 

 Beer's and Lambert's laws, 69 

 Benzine, effect on retina of, 29 

 Benzylamine, reaction with retinenCi, 



106 

 Bile, action on rods, 27 

 Bile salts, 9-10 



Binary mixture, bleaching of, 165-171 

 Bipolar cells, 4 

 Birds, visual pigments of 

 Chicken, 152 



Owl {Strix fiammia\ 28-29 

 Bleaching 

 effect of age on, 55, 184-185 

 effect of temperature on, 42-55, 76- 



77, 84-90 

 kinetics of, 68-75 

 of mixtures, 165-175 

 products of 

 See Indicator yellow. Lumi- 

 rhodopsin, Meta-rhodopsin, 

 Retinene, Transient orange, 

 Vitamin A 

 Bleak {Alburnus lucidus), 169, 171-175, 



178-179 

 Blue gill {Lepomis pallidus), 34, 40 

 Boa, 28 



Bream {Abramis brama), 28 

 Brook trout {Salvelinus fontinalis), 



36-37 

 Bull frog {Rana catesbiana), 30-31, 



33-34, 189 

 Burbot {Lota vulgaris), 28 



Calico bass {Pomoxis sparoides), 34-36, 



40 

 Carbon disulphide, effect on retina of, 3 1 

 ^-Carotene, 132 

 Carotenoids 



absorption, characteristics of, 1 34 



absorption, interpretation of, 132- 

 134 



astacene, 102-103 



astaxanthene, 97, 1 23 



cis and trans isomers of, 131 



density spectra of, 132 



structural basis of, 131 

 Carrier weight of chromoprotein, 91 



209 



