462 



INDEX 



Gelatin, 79 



Generation time, 115 



Germ, 3 



Germicide, 137 



Germ theory of disease, 8 



fermentation, 6 

 Giant cells, 375 

 Gingivitis, 314 

 Glanders, 387 

 Glycogen in yeasts, 44 

 Gonococcus, 325 

 Gonorrhoea, 326 

 Graham, 366 

 Gram's stain. 111 

 Granulose, 21 



Growth, effect of hydrogen ion 

 concentration on, 133 



rates, 115 



temperature range, 122 



Hairy root, 406 

 Hay fever, 322 

 Heat, effect of, 120 



production, 128 

 Heine-Medin disease, 421 

 Hemoglobinuria, 413 

 Hemolysin, 292 

 Hemophilus, 28, 39 



influenzae, 39 

 Hemorrhagic septicemia, 345, 



346 

 Hepatization, 324 

 Herpes tonsurans, 395 

 Hide handler's disease, 352 

 Hill, 128 

 Histamin, 230 

 Hoffmann, 397 

 Hog cholera, 424 

 Hookworm disease, 443 

 Hormodendrum, 58, 66 

 Hydrogen ion concentration, 80, 

 92 



effect on death rates 140 



growth, 133 

 Hydrogenomonas, 30 

 Hydrolases, 160, 161 

 Hydrophobia, 423 



Hydrotropism, 132 

 Hydroxyl ion concentration, 141 

 Hypersusceptibility, 300 

 Hypha, 50 



Immunity, 276 



acquired, 279 



active, 279 



factors determining, 280 



natural, 279 



passive, 279 

 Immunology, 9 

 Indicators, 82, 92 

 Indol deterinination, 102 

 Infantile paralysis, 421 

 Infection atria, 306 

 Infectious anemia, 426 



diseases, 9, 273 

 Inflammation, 309 

 Influenza, 426 



Intermediate subgroup, 332, 33 

 Intestinal group, 331 

 Inulase, 161, 163 

 Invertase. 161, 164 

 Involution forms, 15 

 Iron bacteria, 24 

 Isotonic solutions, 125 



Jenner, 419 

 Johne's disease, 



382 



Kitasato, 357 

 Koch, 8, 39, 353, 372 



Lactacidase, 166 



Lactase, 164 



Lactic acid as preservative, 140 



bacteria in milk, 198 



dextro, 193 



in bread making, 207 



in cheese, 203 



in foods, 204, 207 



in milk, 201 



in yeast manufacture, 207 



levo, 193 



produced by bacteria, 193 



acid fermentation, 192 



