INDEX 



643 



HANGING block for study of bacteria, 176 



drop for study of bacteria, 176 

 Heat, effect of, on bacteria, 43, 242. See 



Sterilization. 

 Hemodigestine, 51 

 Hemoglobinophilic bacteria, 417-423 



in trachoma, 570 

 Hemolysin, 151 r 153 



of pneumococcus, 287 



preparation of, 159 



of staphylococcus, 258 



of streptococcus, 273 



of typhoid bacillus, 328 

 Hemolysis, 51 

 Hemolytic activity, measure of, 158 



system, preparation of, 159-161 

 Hemorrhagic septicemia group of bac- 

 teria, 407-416 

 Herpes tonsurans, 544 

 High-frequency currents, effect of, on 



bacteria, 46 

 Higher bacteria, 533 

 Hiss capsule stain, 181 



semisolid medium, 204 



serum water medium, 200 

 Hodgkin's disease, 405 

 Hog cholera group of bacteria, 344 

 Humoral theory of immunity, 118 

 Hydrocele media, 203 

 Hydrogen, sources of, for bacteria, 67 



peroxide as germicide, 245 

 Hydrophobia, 565 

 Hypersensitiveness, 132-141 



acquired, 139 



natural, 138 

 Hyphomycetes, distribution of, 106 



general, 541 



IDIOPATHIC tetanus, 482 

 Immunity, acquired, 113 



classification of, 113 



individual, 113 



induced, 113 



and infection, general, 111-131 



inherited, 113 



natural, 113 



racial, 113 



theories of, 117-131 

 Incubators, 213, 314 

 Indican, 74, 219 

 Indol, 74, 198, 218, 219, 221 

 Infection, air borne, 91, 92 



animal borne, 94 



contact, 96 



food borne, 93 



by human carriers, 95 



insect borne, 94, 95 



phenomena, general, 115-117 



principles of, general, 111 



soil borne, 93 



Infection, water borne, 93 

 Infectious abortion, 382, 460 

 Inflammation, bacteria of, 255-291 

 Influenza bacillus, 417-420 



dissemination and prophylaxis 



of, 90, 106, 110, 420 

 identification of, 419, 420 

 cultural, 419, 420 

 morphological, 419 

 serological, 420 

 immunity and immunization of, 



419 



isolation and culture of, 417 

 morphology of, 417 

 pathogenesis of, 418, 419 

 animal, 418 

 human, 419 



products of growth of, 418 

 Inoculation of media, 214 

 Inorganic salts in bacteria, 60, 65 

 Insects and infection, 94, 95 

 Instruments, sterilization of, 253, 254 

 Intermediate group of bacteria, 344 

 Intestinal bacteria, significance of, 581 



substitution of, 595 



Intestines, bacteria of, 103, 107, 230, 579 

 of adults, 586-588 

 of infants, 581-586, 591 

 Invertase, 51 

 Iodine as germicide, 247 

 isolation of bacteria, 204-208 

 plate method, 206 

 single-cell method, 208 

 streak method, 207 



KARLINSKI bacillus, 467, 470 

 Kedrowski bacillus, 464, 468 

 Kidney, bacteria of, 105, 356, 361 

 Koch, new tuberculin, 445 



old tuberculin, 444 



tuberculin test, 448 

 Koch-Weeks bacillus, 423 



LACTASE, 51 



Lactic acid bacillus therapy, 596 



enzyme, 51 



fermentation, 73, 596 

 Lactose litmus agar, 202 

 Lepra cell, 464 

 Leprolin, 464 

 Leprosy bacillus, 463-468 



dissemination and prophylaxis 

 of, 106, 467-468 



identification of, 467 



morphology of, 463, 464 



pathogenesis of, 465, 466 

 animal, 466 

 human, 465, 466 



products of growth of, 464 



