INDEX. 



455 



Hay morphology, cultural characters, 

 271 



resisting power of spore to heat, 



123 

 Heat, effect on growth of bacteria, 247 



sterilization by, 53 

 Hematoxylin, 44 

 Hematozoon of malaria, 432 

 Hemolysis, 194 



Healthy persons as carriers of infec- 

 tion, 175 



Heterologous serum, 191 

 High temperature incubator, 82 

 Higher bacteria, 276 

 Hill's test for germicides, 243, 2 

 Hiss, medium of, 373 



stain for capsules, 49 

 Historical sketch of bacteriology, 8 

 Hog cholera, 171 

 Holmes, O. W., 12 

 Homologous serum, 191 

 Honing of knives, 40 

 Hot-air sterilizer, 54 

 Houses, disinfection, 253, 260 

 Hueppe's method for anaerobes, 82 

 Hydrochloric acid (see Acid, hydro- 

 chloric) 



Hydrogen, cultivation of anaerobes 

 under, 8q 



peroxide, 257 



sulphide, 119 

 Hydrophobia, organism, 170 



diagnosis of, 203, 208 



effect of radium rays on virus of, 

 206 



incubation period in, 207 



preventive inoculation, 206 



"virus fixe,'' 206 

 Hypersensibility to infection, n 

 Hypha, 280 



Hypochlorite of calcium, 256 

 Hypodermic inoculation of animals, 



Ice, bacteria of. 148 

 Ice-cream poisoning, 153 

 Illumination for the microscope, 21 

 Imbedding, in celloidin, in paraffin, 38 

 Immune-body, 226 

 Immunity, acquired, 200 



active, 211 



antitoxic, 208 



bacteriolytic, 193 



by injection of cultures, 201 



duration of, 212 



Immunity, individual, 198 



following vaccination, 200 

 scope of, 198 

 natural 199 

 passive, 211 

 racial, 199 



side-chain theory, 218 

 theories of, 212 

 unit, 348 



Impression-preparation, 25 

 Inactivated serum, 222 

 Incubator, 82 

 Indol, formation of, by bacteria, 1 29 



test for, 129 



Infected surgical wounds, 262 

 Infection, auto-, 177 

 avenues of, 172 

 bodily conditions favoring, 178 

 by air, 175 

 by bed bugs, 177 

 by flies, 176, 380 

 by healthy individuals, 175 

 by insects, 177 

 by mosquitoes, 172, 177 

 in milk, water, soil, 176 

 influence of amount of material 



on, 182 i 



of virulence on, 182 

 local conditions favoring, 181 

 mixed, 183 

 modes of, 172 

 of embryo, 172 

 of investigators with pathogenic 



bacteria, 115 

 of wounds, 263 



predisposing causes: Age, alti- 

 tude, climate, individual, 179 

 racial, 180 

 secondary, 183, 287 

 terminal, 183 

 Infectious disease, definition, 168 



diseases not followed by immunity, 



200 

 Inflammation, 283, 288 



diphtheritic (see Pseudo-mem- 

 branous inflammation) 

 Influenza bacillus, 336 

 Infusorial earth in filters, 62 

 Inoculation of animals, for testing 

 pathogenic property of bac- 

 teria, 103 



for isolation of bacteria, 94 

 intravenous, 103 

 subcutaneous, 102 

 of tube-cultures, 79 



