Organisms, dissemination of, in body, 247 filterable, 234 pathogenic, elimination of, 248 entrance of, 243-246, 247 specific relation to tissue, 249 ultramicroscopic, 234 Organized ferments, 126 Osmotic pressure, 78, 149, 216 Otitis media, 244 OTTO, 289 Overproduction theory, 257, 258 OWEN, 27, 34 Oxidation, 114, 115 Oxidizing enzymes, 125 Oxygen, compressed, 77 as disinfectant, 156 function of, 88 nascent, 77 relationships, 215, 220 requirement, 88 source, 76, 77 Oyster sensitization, 292 OZNAM, 26 Ozone, 77, 150, 157 P PANCREAS, 248 Papillate, 221 PAGET, 27, 34 Paraffin oil, 190 Parasite, 87 facultative, 87 strict, 87 PARODKO, 77 Partial agglutinin, 267 amboceptor, 274 Passive immunity, 251, 252 PASTEUR, 17, 21, 29, 30, 31, 32, 35, 253, 256, 283 flask, 21, 23, 24, 193 treatment of rabies, 253 Pasteur-Chamberland filter, 154 Pasteurization, 139-147 continuous, 141 flash process, 145 Pathogenic, 87 bacteria, definition of, 231 outside the body, 237 bacteriology, scope of, 235 organisms, destroyed by boiling, 133 elimination of, 248 entrance of, 243-247 Paths of elimination, 248 of entrance, 243-247 PEACOCK, 26 Pebrine, 29, 35 Pedesis, 47 Peptone solution, Dunham’s, 177 Period of incubation, 26, 232 Peritonitis, 234 Peritrichic, 46 _Peronospora infestans_, 28, 34 PERTY, 33, 35 Pet animals, 241 Petri dishes, 181, 188 Petroleum, 95 PFEIFFER, 271 Pfeiffer’s phenomenon, 271 _Pfeifferella mallei_, 65, 69, 265 Phagocytes, 247 Phagocytic index, 281 Phagocytosis, 243, 280-288, 295 theory, 256 Pharynx, 245 Phase, negative, 287 positive, 287 Phenol coefficient, 165, 166 as disinfectant, 159 production of, 104, 111 Phenolphthalein, 174 Phenomenon, anaphylactic, 292 Arthus’, 289 Pfeiffer’s, 271 Phosphate reduction, 114 rock, 115 Phosphorescence, 111 Phosphorus cycle, 108 in proteins, 105 uses of, 89 Photogenesis, 111 Physical agents for disinfection, 131-155 Physiological activities, 93-129 definition of, 87 in identification, 216 Physiology of bacteria, 71-171 Phytotoxins, 127, 128 Pickling, 98 Pigeons, 227 Pigments, 84, 112, 113 Pimples, 234, 240, 243 PINOY, 284 Pipettes for inoculation, 193 _Piroplasma bigeminum_, 233, 242, 249 Piroplasmoses, 242, 249 PIRQUET, von, 289 Pityriasis versicolor, 28, 34 Plague, 246 Planes of division, 56, 57 _Planococcus_, 62 _Planosarcina_, 62 Plants and animals, 39 _Plasmodiophora brassicæ_, 30, 36 Plasmolysis, 41, 42, 78 Plasmoptysis, 42, 78 Plate colonies, study of, 224-226 cultures, 180, 188, 191 Plates, dilution, 194, 195 gelatin first used, 30, 36 Platinum needles, 193 Plectridium, 49 PLENCIZ, 26, 31