INDEX. 



613 



Hakfkink's method for cholera im- 

 munity, 434 

 toxin of bubonic plague, 561 

 H mils, disinfection of, 171 

 Hanging-drop method of examining 



living micro-organisms, 144 

 Havelburg's bacillus, 524 

 Hematoxylon as a stain for bacteria, 



146 

 Henscl and Czaplewski's method of 



washing sputum, 305 

 Hesse's apparatus for collecting bacteria 

 from air, 229 

 method for cultivation of anaerobic 



bacteria, 216, 217 

 quantitative method for estimating 

 bacteria in air, 229 

 Heyroth's instrument for counting col- 

 onies in Petri dishes, 234 

 Hiss's culture-media for differentiating 

 bacillus typhosus from allied 

 forms, 472 

 History of bacteriology, 17 

 biologic contributions, 17 

 chemical contributions, 22 

 medical contributions, 24 

 surgical contributions, 24 

 Hog-cholera, 531 



antitoxin serum of, 537 



bacillus of, 531, 533. See also 



Bacillus of hog-cholera. 

 immunity to, 536 

 lesions of, 532, 533, 535 

 pathology of, 532 

 symptoms, 531 

 HSgyes' method of treating hydro- 

 phobia, 388 

 Hot-air sterilizer, 165 

 Humor theory of immunity, 99 

 Hydrophobia, 384 



and tetanus, parallelism existing be- 

 tween, 385 

 cure for. 387 

 incubation-period of, 384 

 treatment of, Cabot's method, 389 

 Hogyes' method, 388 

 Pasteur's system, 387 

 with bile, 388 



Imbedding, methods of, 150. See also 

 Bacteria, methods of imbed- 

 ding. 

 Immunity, 90 



acquired, 72, 90, III 

 accidentally, III, 112 

 aberrant diet, 1 13 

 causes, 112 

 infection, 112 

 modified infection, 113 



Immunity, acquired, experimentally, 

 active, 1 14 

 passive, 118 

 theories of, 139-142 

 antitoxin, 142 

 exhaustion, 139 



germicidal action of blood, 141 

 lateral chain, 142 

 phagoc y tosis, 1 40 

 retention, 140 

 action of cells on leukocytes in, 97 



of leukocytes in, 96 

 active, 90, 114 

 inoculation, 114 

 intoxication, 117 

 vaccination, 1 1 5 

 activity of cells in, 94 



of humors, 99 

 and susceptibility, 90 

 blood-serum therapy, 28 

 duration, 122 

 exaltation of, in 

 forced, 112, 121 



antimicrobic powers of blood-serum 



in, 123 

 antitoxic powers of blood-serum 

 in, 123 

 germicidal power of blood, 99 

 modification of, 107 

 natural, 72, 90, 93 

 explanation of, 94 

 influence of race, 93 

 passive, 90 



antitoxins, 118 

 inert particles, 121 

 tissue suspensions, 118 

 produced by saprophytic bacteria, 



116 

 reduction of, 107 



depressing hygienic conditions, 



107 

 diseased conditions, 1 10 

 effect of drugs, 109 

 exposure to cold, 108 

 fatigue, 108 

 mixed infections, 1 10 

 noxious gases, 107 

 operative manipulations, 109 

 peculiarities of diet, 108 

 traumatic injury, III 

 relative condition of, 92 

 standard of, 92 

 theories of, antitoxin, 105 

 humor, 99 

 phagocytosis, 94 

 Immunity-reaction, 433 

 Immuni/.ation. 112, 121 

 Immunizing unit, 413, 414 

 Incubating-oven, new model, 214 



