1146 



INDEX 



Trypa>wsoma, segregation granules, 134, 

 136 



Trypanosomes, glycolysis rate, 388 ff. ; 

 rate of reproduction, 842 ; nonlethal in- 

 fection with the Trypanosoma lewis: 

 group of, 855-62; nonpathogenicity, 

 862 ; best-known pathogenic, 862 ; im- 

 munological reactions, 874, 877 



Trypanosomiasis, tests, 75; continuous 

 fatal in mouse and sometimes in rat, 

 862-64; intermittent fatal, in various 

 animals, 864-71 



Tschaschin, 836 



Turner, John P., 24, 471, 619, 620, 621, 

 626, 628, 633, 634, 637, 647; fibrillar 

 system, 206-8, 222, 223; Fertilization in 

 Protozoa (Chap. XII), 583-645 



Tuzet, 141 



Tyzzer, 1046 



Uhlenhuth, 180 



Ullmann, 961, 966, 971, 981 



Ultracentrifugation and X-ray diffraction, 

 97 f. 



Ultracentrifuge, research with, 81 



Ultra-violet radiation, 60 



Linger, 533 



Uniparental reproduction, see Reproduc- 

 tion, uniparental 



Unknown granules, defined, 179 



Uric acid, in contractile vacuole, 422 ff. 



Uroleptus halseyi, preparation for divi- 

 sion, 18, 21; fibrillar system, 256, 257; 

 division, 637 



Uroleptus mobilis, preparation for divi- 

 sion, 19, 20; vitality, 29-31; conjuga- 

 tion, 31, 32, 34-38; fertilization, 615, 

 616, 630, 632, 633 



Uronychia, merotomy and regeneration, 

 16 ff., 775 ff., 783 ff., 797 



Usuelli, 979, 980, 982, 984 



Uylmura, 919, 921, 934 



Vacuolar reaction, term, 132, 176 



Vacuolation upon transfer to fresh water, 

 78 



Vacuole, term gastriole substituted for, 

 129 



Vacuoles, accessory (vesicles): relation to 

 contractile vacuole, 412, 4l6, 424, 439, 

 441; contribution of osmiophilic gran- 

 ules to formation of, 439 



Vacuoles, contractile, 404-47; effects of 



fresh and salt water, 66; permeability, 

 67-69; membrane surrounding? 67; 

 color, 83; osmiophilic structures, 144- 

 50; function, 173, 421-31, 442; origin, 

 405-13, 441, 442 f.; whether perma- 

 nent or temporary, 410, 4l9, 441; rela- 

 tion of accessory vacuoles to, 412, 416, 

 424, 439, 441; structure, 413-21, 441; 

 regulation of hydrostatic pressure, 422, 

 426 ff., 442; and Golgi apparatus, 431- 

 41, 442; generalizations re processes 

 associated with, 441-43; outstanding 

 features, 443; literature cited, 443-47 



Vacuoles, food: permeability of, 69-71 



Vacuoles, other types: in the cytoplasm, 

 71 



Vacuome, hypothesis, 126-29; term sub- 

 stituted for segregation granule, 126; 

 ferment theory, 127; digestive granules, 

 131; a universal cell constituent, 170; 

 universality of, rejected, 175; present 

 in all cells .'' 432; identical with Golgi 

 apparatus? 432, 436 



Valentin, 96 



Valkanov, 602, 613, 906 



Van Beneden, 892 



Van den Branden, 870 



Variation and its inheritance occurring 

 without obvious action of diverse en- 

 vironments, 723-29 



Vaucel and Hoang-Tich-Try, 876 



Veley, 1026, 1027 



Vernes, Bricq, and Yvonne, 876 



Verworn, M., 74, 86, 93, 787, 788, 793; 

 motor responses, 282, 305, 320, 324, 

 326, 332 



Vesicles, see Vacuoles, accessory 



Villian and Dupoux, 876 



Virulence, problems of pathogenicity and, 

 818-23 



Viscosity, studies of changes in, 51 ff. 



Visscher, J. P., 343, 620, 621, 624; 

 fibrillar system, 235 



Vitality, and life, 3 f ., 34; waning, in 

 ciliates, 28 ff.; underlying cause of 

 waning vitality and death of proto- 

 plasm in isolation cultures, 39; effect 

 of conjugation upon, 6l6 



Vitamins, A in the mitochondria, 121, 

 125; protoporphyrin, 383; specific 

 growth factors, 489-93; Bi, 490 ff., B2, 

 492; C, 492; ciliate capacity of syn- 

 thesizing B, 985 



