Death-point, thermal, 75 determination of, 215 Decomposition, how caused, 108 importance of, 108 of urea, 106 Deep culture tubes, 190-191 Degeneration forms, 54 Delousing method in typhus, 242 DE MARTIN, 35 Denitrification, 114 Deodorant, 131 Descriptive chart, 217 Diagnosis, agglutination test in, 265-267 anaphylaxis in, 292 complement-fixation test in, 277 immunity reactions in, 255 material for bacteriological, 228-229 precipitin test in, 269 Diastase, 124 Diffusion of food through cell wall, 41 Digestion of proteins, 102 Dilution method of isolation, 194 plates, 194, 195 Dimethylamine, structural formula, 103 Diphtheria antitoxin, 30, 263, 264 bacilli, granules in, 45 involution forms, 54 carriers, 239 location of, 245, 249 path of entrance, 245 toxin, M. L. D., 264 Diplobacillus, 55 Diplococcus, 56 _Diplococcus_, 66, 69 Diplospirillum, 55 Discharges, 228 intestinal, 248 nasal, 248 urethral, 248 vaginal, 248 Discontinuous sterilization, 133 Disease, acute, 233 of animals to man, 232 Bilharzia, 28, 35 cabbage, 30, 35 causation of, 24, 128 communicable, 232 contagious, 34, 232 of flies, 28, 35 germ, 25, 27, 33 hookworm, 28, 35 infectious, 232, 240 Johne’s, 246, 248 non-specific, 233 protozoal, eradication, 242 transmission, 242 silkworm, 27, 29, 34, 35 skin, 243 specific, 27, 30, 233 transmission of, 26, 232 Dishes, Petri, 181 Disinfectant, 131 action of anilin dyes, 162 closed space, 161 dry heat as, 133 moist heat as, 132, 133 standardization of, 165 steam as, 132, 133 Disinfectants, chemical, action of, 156-163 first experiment in, 21 factors affecting, 164-165 Disinfection, agents in, 131-163 by boiling, 132, 133 by burning, 132 by burying, 154 definition of, 130 first chemical, 34 hot air, 21, 133 physical agents, 131-155 practical, 166-170 precautions in, 170 puerperal fever, 28, 34 steam, 134-138 surgeon’s hands, 28 Dissemination of organisms, 247 DISTASO, 42, 43 Distilling sour mash, 98 Division, planes of, 55-58 rate of, 43, 91 DOBELL, 43 DORSET, 84 Dosage of vaccines, 286 Dose, minimum lethal, 264 standard test, 264 DOUGLAS, 42, 43, 280 Dourine, 245, 248 Drumstick spore, 49 Dry heat, 21, 133 Drying, 131, 132 DUBINI, 27, 34 Ducrey’s bacillus, 245 Dunham’s peptone, 177 DURHAM, 265 Dyes, anilin, as antiseptics, 162 introduction of, 30 as stains, 204 Dysenteries, 242, 246, 248, 249 Dysentery, amebic, 29, 35 tropical, 29 E ECTOPLASM, 41 Edema, malignant, 237, 243 Edge of colony, 225 Effuse colony, 224 Egg sensitization, 292 EHRENBERG, 33, 34 EHRLICH, 256, 276 Ehrlich’s theory, 256-260 EICHSTEDT, 28, 34