Ophthalmia, gonorrheal, 275 Opsonic index, 201 Opsonins, 200 measuring amount of, 200 Wright's method for measuring, 200 Organic acids in gastric contents, 219 quantitative test, 226 Otitis, 276 bacteria of, 276 tuberculous, 276 Oxalate, calcium, in urine, 106 Oxybutyric acid in urine, 87 Oxyphilic structures of blood, 172 Oxyuris vermicularis, 253 Pancreatic reaction, 91 flasks for, 93 in pancreatitis, 91 technic, 92 Pancreatitis, pancreatic reaction in, 91 Paramoecium coli, 246 Parasites, animal, 244 anemia from, 204 arthropoda, 259 in feces, 238 in urine, 128 infection with, eosinophilia in, 183 protozoa, 244 vermes, 247 blood, 186 causing skin diseases, 277 ova of, in feces, 243 Paroxysmal hemoglobinuria, 89 Passive hyperemia, urine in, 133 Pavement epithelial cells in urine, 122 Pediculus capitis, 259 corporis, 259 vel pubis, 259 Pepsin, 213 in gastric contents, quantitative test, 227 tests for, 221 Pepsinogen, 213 in gastric contents, test for, 221 Pericardial fluid, examination, 265 Peritoneal fluid, examination, 265 Permeability of kidneys, tests, 55, 56 Pernicious anemia, 205 blood-plaques in, 166 color index in, 156 degeneration of Grawitz in, 176 erythroblasts in blood in, 177 erythrocytes in, 175 lymphocytes in, 179 myelocytes in, 184 oligocythemia in, 150 polychromatophilia in, 176 Pertussis, leukocytosis in, 161 lymphocytes in, 179 Phagocytes, 158 Phagocytic index, 201 leukocytosis, 159 Phagocytosis and infection, 200 Pharyngomycosis leptothrica, 271 Pharynx, tuberculosis of, 274 ulceration of, 273 Phenacetin in urine, 95 Phenol in urine, 99 Phenolphthalein in urine, 99 Phenylglucosazone crystals, 78 Phenylhydrazin test for glucose, 78 Phloridzin test for urine, 56 Phosphate crystals in urine, ammoniomagnesium, 109 calcium, 110 triple, 110 in urine, 60, 109 amorphous, 50, 61, 111 in mass, 120 earthy, 61, 111 estimation, 61 Purdy's centrifuge method, 61 quantitative, 61 Purdy's table for, after centrifugation, 61 Phosphorus poisoning, anemia from, 204 Pin-worms, 253 Piroplasma hominis, 247 Pirosoma bigeminum, 247 Plasmodium malariæ, 187 ameboid movements of, 187 asexual cycle of, 187 cycles of, 187 detection, 191, 192 estivo-autumnal, 187, 188, 194 gametes in blood with, 188 hyaline stage of, 187 life histories, 187 merozoites of, 187 mosquitos as host, 189 quartan, 188, 194 Ruge's method for, 192 segmentation of, 187 sexual cycle, 188 spores of, 187 stains for, 192 tertian, 188, 194 Wright's stain for, 192, 193 Pleural fluid, examination, 265 Pneumococcus capsules, Buerger's method for, 37 stains for, 37 in eye affections, 274 in otitis, 276 in pus, 263 in sputum, 35 Smith's method, 37