SUBJECT INDEX 



639 



X'aiiula, use of convali'scont scniiii 



in, 292 

 N'Msnmotor rhiuitis, t'at'ts about ]iei- 



eniiial, 566 

 Vegetable proteins, antigenic content, 

 324 

 Wells and Osbnine 's work on, 

 324 

 Verification test, Kahn's, 435, 457 

 Vernes ' test, 465 

 Vi antigen, 121 



inagglut inability and, 384 

 presence in Halnionella paratyphi 



G, 38 

 role of, 351 

 N'ibrio cholerae, antigenic composition 



of, 364 

 Virulence, capsule formation and, 37 

 correlation of colony type and, 37 

 definition of, 36 

 factors altering, 37 

 host factors and, 39 

 measurement of, 36 

 Virus disease, use of serum in, 289 

 fixation of, by lymphocytes, 72 

 infiuenzae, immunization with, 13 2 

 Viruses, age and resistance to, 105 

 chemical analyses of, 39 

 defense against, 139 

 immunization against, 110, 111 

 nature and characteristics of, 39 

 result of x-ray studies of, 40 

 size of, 39, 40 

 Stanley's work and, 39 

 theory of origin of, 40 

 tissue response in, 59, 60 

 Vital staining, 88 



mechanism of, 89 

 Vitamins, resistance and, 105, 106 

 \'ole vaccine, ilata on, 113 



tuberculosis immunity and, 550 



W 



Wassermann antigen, introduction 

 of cholesterol, 427 

 normal reagin and, 150, 151 

 stages in improvement of, 427 

 dispute over specificity of, 435 

 provocative, 432 

 reaction, mechanism of, 435 



snake complement and, 161 

 test, early history of, 423 

 early technique, 424, 425 

 introduction of alcoholic tisstie 

 extracts, 426 



Wassermann test — Cont 'd 



Kolmer's antigen for, 429 



modification of, 428 

 nonspecific reactions, 434, 435 

 paroxysmal hemoglobinuria and, 



'l50 

 reporting results of, 430 

 stages in development of, 426- 



428 

 titration of Kolmcr antigen for, 



430 

 value of, in primary stage, 420 

 various modifications of, 427 

 Wassermann-fast cases, 432 

 Welch, hypothesis of, 37 

 Well's criteria of anaphylaxis, 485 

 Wherrv's tissue hydration theorv. 



74 

 White cells, different kinds, 56 

 Whooping cough, vaccination 



against, 114, 116, 117 

 Widal, antigens in, 379, 380 

 controls in, 382 

 cross reactions with Salmonella 



organisms and, 384 

 errors in, 382 

 interpretation of, 381, 382 



in vaccinated individuals, 386 

 microscopic method, 381, 382 

 _ normal and diagnostic titers, 383 

 organisms and, 384 

 percentage of positives in tvphoid, 



415 

 techniques employed, 380, 381 

 time and temperature of incuba- 

 tion, 386 

 use of H and O antigens in, 384 

 use of S. gallinarum or S. pullor- 



um in, 391 

 Vi antigens and, 384 

 Wounds, factors in gas gangren<», 

 295 

 tetanus bacteria in, 296 



X 



X-ray, use in virus studies, 40 



Y 



Yeast, gum, substances in, 325 

 soluble specific substance from, 325 



Z 



Zone phenomenon, illustration of, 



252, 253 

 Zootoxins, 34, 35 



