Electric milk purifier, 152 Electricity, 79, 150 Elements in bacteria, 82, 86, 88, 89 Elimination of organisms, 248 _Empusa muscæ_, 28, 29, 35 Emulsin, 122 Endo-enzymes, 126 Endogenous infection, 235 Endoplasm, 41 Endotoxins, 128, 276 Energy relationships, 39 transformations, 86-90 Ensilage, 98 Enteritis, 233 Entire edge, 225 Entrance of organisms, 243-246, 247 Environmental conditions, 72, 130, 213 Enzymes, 84, 121-126 in anaphylaxis, 291 in immunity, 295 Enzymoid, 262 Epidemics, 241 Epitheliolysin, 272 Eosin, 204 Equatorial spore, 49 germination of, 48, 49 Eradication of disease, 236, 242 Erysipelas, hog, 248 _Erythrobacillus prodigiosus_, 66, 68, 70, 77, 113 Essential structures, 41 Essentials of a culture medium, 172 Esters, 84, 110 Ether as disinfectant, 162 EUBACTERIA, 62 Exanthemata, 248 Exhaustion factor in immunity, 251 theory of immunity 256 Existence, conditions for, 72 Exo-enzymes, 126 Exogenous infection, 235 Exotoxins, 128 Experiment, Pasteur’s, 21 Schroeder and Dusch’s, 22 Schultze’s, 21 Schwann’s, 22 Tyndall’s, 24 Experimental animals, 227 External auditory meatus, 244 genitalia, 245 Extracellular enzymes, 126 Extract broth, 176 Eyes in cheese, 96, 97 F Factors affecting disinfectants, 164, 165 immunity, 250, 251 in immunity to disease, 295 Facultative, 215 aërobes, 76 anaërobes, 76, 192 parasites, 87 saprophytes, 238 Failure of cytolytic serums, 275 of vaccines, 286 Fat colors, 112 splitting enzymes, 124 Father of bacteriology, 19 of microscope, 19 Fats as antigens, 260 occurrence of, 84 rancidity of, 101 in sewage disposal, 101 splitting of, 101 Favus, 27, 34, 243 Feces, bacteria in, 72 Feeding, as inoculating method, 228 FEINBERG, 43 Ferment, organized, 126 unorganized, 126 Fermentation, 31, 93 acid, 93, 96 acetic, 32, 99 butyric, 32, 99 alcoholic, 31, 34, 100 ammoniacal, 32 bacterial, 32 blue milk, 31, 34 of carbohydrates, 93-101 definition of, 93 gaseous, 93, 94, 96 tubes, 184, 190 yeast, 34, 99 Fermented milk, Bulgarian, 98 Fever, due to invisible organisms, 25 Malta, 268 recurrent, 29, 35 Rocky Mountain spotted, 242 scarlet, 246, 248 Texas, 232, 233, 242 typhoid, 232, 248 typhus, 242 yellow, 242 Fibrin ferment, 124 Filament, 56 Filiform growth, 221 Film, fixing of, 207 preparation of, 207 Filter, Berkefeld, 154 candles, 153-154 Mandler, 154 Pasteur-Chamberland, 154 sprinkling, 115, 116 Filterable virus, 234 Filtration, 152-154 First order, receptors of, 261, 262 FISCHER, 42, 45 Fixation test, complement, 276 Fixed virus, 253 Fixing of film, 207 Flagella, 45-47 staining of, 210