INDEX OF SUBJECTS 



Abbott's method of staining spores, 



97 

 Absorption method in study of agglu- 

 tination reaction, 234 

 Achorion Schoenleinii, 640 



cultivation of, 642 



morphology of, 641 



varieties of, 641 

 Acid formation by bacteria, 166 

 Acid-fast bacteria, stains for, 104 

 Acquired immunity, 192 



definition of, 192 

 Actinomyces, 622 



cultivation of, 623 



discovery of, in cattle, 622 

 in man, 622 



morphology of, 619, 622 



pathogenicity of, 625 

 in animals, 625 

 in man, 625 

 parts of body infected in, 625 



staining of, 623 



varieties of, 626 

 Actinomycosis, 625 



Active immunity. See under Immunity 

 Aerobic organisms, facultative, 26 



obUgatory, 25 

 non-infectiousness of, 183 



respiratory processes of, 27 

 Agar for culture media, 127 



lactose-litmus, 129 



meat extract, 127 



meat infusion, 128 

 Agar slants, cultivation of anaerobic 



bacteria on, 153 

 Agglutination reaction, 228 



between agglutinin and agglutinin- 

 stimulating substances, 233 



clinical diagnosis by, in typhoid, 229 



concentrated agglutinin in, 235 



Agglutination reaction, differentiation 



of bacterial species by, 229 

 diluted agglutinins in, 235 

 group agglutination in, 234 

 immune or chief agglutinin in, 234 

 macroscopical observation of, 230 



for bacterial differentiation, 231 

 major agglutinin in, 234 

 microscopical observation of, 229 



for chnical diagnosis, 231 

 minor agglutinins in, 234 

 nature of, 228 , 



of capsulated bacteria, 13 

 partial agglutinins in, 234 



absorption method in study of, 234 

 proagglutinoid zone in, 235 

 proagglutinoids in, 235 

 pseudo-clumping in, 231 

 specificity of, 234 

 "thread-reaction" in, 231 

 upon dead bacteria, 231 

 upon hving bacteria, 231 

 Agglutination tests, technique of, 250 



macroscopic, 252 



microscopic, 251 

 Agglutinins, 200, 228 

 action of, 240 



agglutinin-stimulating substances and, 

 233 



quantitative relations between, 233 



reaction between, 233 

 bactericidal substances compared 



with, 231 

 cell receptors in, 238 

 concentrated, failure of, to produce 



agglutination, 235 

 diluted, agglutination reaction with, 



235 

 effect of heat on, 232 

 experimentation with, 231 



731 



