SUBJECT INDEX 



745 



B 



Background matching, by insects, 667- 

 668 

 by Misumena, 667 

 Bacteria, brown, 393 



photosvnthetic, spectra of pigments, 



301-303, 305, 343, 370-388 

 purple, 393 



nonsulfur, 298, 299, 306 

 sulfur, green, 298, 302, 306, 341, 371, 

 372, 393 

 purple (see Purple sulfur bacteria) 

 Bacteriochlorins, 96, 113 

 Bacteriochlorophyll, 96, 301-306, 370, 

 371, 373-381, 384-388, 393 

 (See also Chlorophyll) 

 Bacteriochlorophyll fluorescence, 308, 



311-314,316 

 Bacteriochlorophyll-protein complexes, 



301-303, 308, 309 

 Bacteriochlorophyllin, 301-303, 308, 309 

 Bacterioviridin, 302, 304-306, 393 

 Balanoglossus, neuronal photoreceptors, 



662 

 Balanus, dark adaptation, 664 

 cis-Band, 77 



Barnacles, photoreceptors, 644, 655 

 Barrier-layer photocell, 238 

 Batrochospermum sp., 358 

 Beer's law, 144, 346-347, 363 

 Benzaldehyde, 323 

 Benzene, 100, 102, 107 



as conjugated molecule, 17-19 

 spectrum, 17 

 Benzoquinone, 328 

 4-Benzoyl-mesoporphyrin XIII, 109 

 Beroc, photosensitivity of, 629 

 /3-carotene spectrum, 72, 79, 88, 90 



(See also Carotenoids) 

 Bibio, compound eyes, 652 

 Bifocal ocelli, 645 

 Bindschedeler's green, 91-93 

 Binocular field, in arthropod compound 

 eyes, 652 

 (See also Visual field) 

 Biphenyl, 87, 94, 95 

 Black-body radiation, 5, 52 

 Black-body radiator, 148-150, 182, 244- 



245 

 Blackman curve, 260 

 Blatta, growth of compound eye, 653 

 Blephnrocera, compound eyes, 652 

 Blinding experiments, in cephalopods, 

 642 

 in Chironomus, 643 

 in insects, 646, 653, 657 

 in polychaetes, 634 

 in slugs, 640 



Blinding experiments, in turbellarians, 



629-630 

 Blitum, 529 



Blue-green algae, 303, 306, 322n. 

 Blue shifts, with aza substitution, 93 



n-TT transitions in polar solvents, 91 

 Bolometer, 220, 222-227 

 Bombyx races, photic reactions, 659 

 Botryllus larvae, ocelli, 662 

 Bouguer-Beer law, 144 

 Branchiomma, compound eyespots, 632, 



633 

 Branchiopods, compound eyes, 655-656 

 Branchipus, inverted swimming, 644 

 Brightness, 135, 151, 152 



temperature, 151 

 Brillouin zones in polyenes, 78 

 Brotnus, 524, 536 

 Brown algae, 303, 306 



(See also Diatoms) 

 Bryozoa, photosensitivitj', 637 

 Buckwheat, photosensitivitv, 693, 707, 



708 

 Bunsen-Roscoe product law, 628, 668 

 Bupleurum, 534 

 Butadiene spectrum, 72, 77, 79 

 c/s-Butene, 87 

 Butylaldelydc, 323 

 Butyric acid, 298 



C 



Cabomba, 300 



Calanus, compound eye, 656 



Calliphora, flicker-fusion rate, 649 



visual performance, 670 

 Cambarus, compound eye, 633 



flicker fusion, 649, 668 

 Camera-style eyes, of Alciopa, 632 



of cephalopods, 641 



of Copilia, 635 



of Eupolyodontes, 632 



of Pterotrachea, 635 

 Camouflage, 349, 351 

 Cancer (crab), retinal actional potentials, 



664 

 Candle, 137 

 Carbohydrates, 261 

 Carbon", 316 

 Carbon arc, 167-170 



spectrum, 168 

 Carbon dioxide, 529, 537, 540 



assimilation, 293 



chemosynthetic, 293, 322 



by chloroplasts, 341 



by preilluminated cells, 315, 317-319 



burst, 280, 283 



as hydrogen acceptor in photosynthe- 

 sis, 310' 



