550 



INDEX 



Diphtheria bacillus, 185 



animal inoculation as test for 



virulence of, 188 

 biology of, 188 

 characteristic appearances of. 



187 



exudate due to, contrasted with 

 that due to other bacteria, 

 216 



agglutination of, 210 

 growth on agar, 190 



on blood serum, 190 

 in ascitic bouillon, 192 

 in healthy throats, 196 

 human inoculation of, 186 

 isolation by means of serum 



bouillon, 191 

 of, from plate cultures, 



191 

 non-virulent forms of, 195, 



197 



pathogenesis, 192 

 persistence of, in throats, 196 



of types of, 199-204 

 resistance to heat, drying, and 



chemicals, 189 

 staining of, 186 

 virulent, in healthy throats, 



196 



varieties of, 200 

 direct microscopic examination of 



exudate of, 220 



examination of cultures for diag- 

 nosis, 219 

 historical, 185 

 -like bacilli, virulent for guinea-pigs. 



195 



mixed infection in, 198 

 relation of bacteriology to diagnosis, 



215 

 serum for eradicating the bacilli of, 



from the throat, 209 

 use of, in eliminating diphtheria ! 



bacilli, 209 

 susceptibility to and immunity 



against, 204 



technique of bacteriological diag- 

 nosis, 217 

 toxin, 193 



neutralizing value of a fatal 



dose, 210 

 production of, in culture media, 



194 



relation between toxicity and 

 neutralizing value of, 210, 

 211 



union with antitoxin, 207 

 toxoid, 210 

 toxon, 213 

 transmission of, 204 

 value of cultures in diagnosis of, 



Diphtheritic characteristic appearance of, 



216 



inflammations, location of, 196 

 Diplobacillus of conjunctivitis, 543 



Diplococcus intracellularis meningitidis, 



360 

 of pneumonia, 349. See Pneumo- 



coccus. 



Disinfectants, gaseous, 111 

 Disinfection, 107 

 by heat, 45 



practical, of house, person, instru- 

 ments, and food, 117 

 Dissemination of disease, 151 

 Drigalski and Conradi, medium, 280 

 Drying, effects of, on bacteria, 104 

 Ducrey, bacillus of soft chancre, 372 

 Dunham's peptone solution, 49 

 Duval, dysentery bacillus, 257 

 Dysentery, amoebic, 477 

 baciflary, 253 

 bacillus, 253 



agglutination characteristics, 



259 



biology of, 254 

 mannite fermenting varieties, 



257 



morphology of, 254 

 pathogenesis of, 255 

 relation to paradysentery 



bacilli, 256 

 types of, 261 

 historical notes of, 254 

 pathology of, 253 



EBERTH, bacillus of typhoid, 263 

 Ehrlich on diphtheria toxin, 212 



on the nature of toxins, 94, 164, 

 210 



partial saturation, method of, 212 



side-chain theory of, 164 



standardization of diphtheria anti- 

 toxin, 210 



Electricity, influence on bacteria, 102 

 Elimination of bacteria through milk, 153 

 through skin and mucous mem- 

 brane, 154 



through urine, 268-284 

 Enantobiosis, 103 

 Endospores, 32 

 Endotoxins, 95 

 Entamceba coli, 477 



hystolytica, 478 



Enteric fever, 441. See Typhoid fever. 

 Enzymes, 88 

 Epitoxoids, 210 

 Erlenmeyer's flask, 54 

 Erysipelas, streptococci in, 337 

 Estivo-autumnal parasite of malaria, 506 

 Examination of air, 448 



collection of material for, 138 



of feces and urine for typhoid bacilli, 

 278 



of ice, 543 



of unstained bacteria, 81 



of water, 443 

 Eye-piece, 77 



