Häser's method for total solids in urine, 55 Hayem's diluting fluid for blood count, 154 hematoblasts, 185 Hay's test for bile acids, 88 Heart disease, anemia from, 204 polycythemia in, 149 Heart-failure cells in sputum, 27, 43, 44 Heat and nitric acid test for albumin, 73 fixation for blood-films, 171 test for albumin, Purdy's, 73 Hematoblasts of Hayem, 185 Hematocrit, 151 Hematoidin crystals in sputum, 30 Hematuria, 125 Egyptian, 128 hemoglobinuria and, differentiation, 88 Hemin crystal test for blood, 202 Hemocytometer, diluting fluids for, 154 Thoma-Zeiss, 150, 151 cleaning instrument, 155 sources of error, 155 technic, 152 Hemoglobin, 142 Dare's estimation, 146 decrease of, 142. See also _Oligochromemia_. estimation, 143-149 Hammerschlag's estimation, 146 in urine, 88. See also _Hemoglobinuria_. increase of, 142. See also _Hyperchromemia_. Sahli's estimation, 144 Tallquist's estimation, 147 von Fleischl's estimation, 143 Hemoglobinometer, Dare's, 146 Sahli's, 144, 145 Tallquist's, 147, 148 von Fleischl's, 143 Hemoglobinuria, guaiac test in, 89 hematuria and, differentiation, 88 paroxysmal, 89 Teichmann's test in, 89 tests, 89 Hemorrhage, anemia from, 204 leukocytosis after, 161 occult detection in feces, 239 Hemosporidia, 187, 247 Herapathite, 100 Hip-roof crystals in urine, 110 Hiss's method for pneumococci in pus, 263 Hodgkin's disease, 208, 211 Holt's milk-testing apparatus, 278 Horismascope, 72, 73 Human milk, 277 Hyaline casts in urine, 114 stage of plasmodium malariæ, 187 Hydatid disease, 247, 251 parasite of, 247, 251 Hydrochloric acid, combined, 213 Töpfer's test, 226 free, 213 absence, 225 amidobenzol test for, 219 amount, 224 Boas' test for, 219 decrease, 225 increase, 224 tests for, 218 quantitative, 224 Töpfer's test for, 225 secretion, 213 Hydrogen sulphid generator, 98 Hyperchlorhydria, 225 Hyperchromemia, 142 Hyperemia, active, urine in, 132 passive, urine in, 133 renal, urine in, 132 Hyphæ of molds in urine, 121 Hypobromite method for urea in urine, 66 Hypochlorhydria, 225 Illumination for microscope, 17 Immersion objective, 21 Indican in urine, 63 from decomposition of exudates, 63 in biliousness, 63 in diseases of small intestine, 63 in diseases of stomach, 63 Obermayer's test for, 64 tests for, 64 Infection, phagocytosis and, 200 blood-plaques in, 166 leukocytosis in, 160 Infectious diseases, secondary anemia from, 204 Inflammations, leukocytosis in, 160 pseudomembranous, of mouth, 272 Influenza bacillus in sputum, 39 Inoculation, animal, 269 Intestines, small, diseases of, indican in urine in, 63 Intoxication, acid, cause, 83 Iodin in urine, 96 reaction of leukocytes, 182 solution, Gram's, 38 Iodoform crystals from Gunning's test, 85 Iodophilia, 182 Irregular epithelial cells in urine, 122