436 



INDEX. 



Hopkins' thiophene reaction for lactic 



acid, 129 



Hiifner's urea apparatus, 377 

 Human fat, composition of, 133 

 Huppert's reaction for bile pigments, 155, 



324 



Hiirthle's experiment, 247 

 Hyaline casts in urinary sediments, 351, 



355 

 Hydrobilirubin, detection of, in feces, 179, 



extraction of, 179 

 Hydrochloric acid of the gastric juice, 



119 



origin of, theories as to, 119 

 Hydrochloric acid test for formaldehyde 



(Leach), 225 

 Hydrogen peroxide in urine, 265, 304 



detection of, in milk, 226 

 Hydrolysis of cellulose, 49 

 cerebrin, 252 

 dextrin, 48 

 glycogen, 244 

 inulin, 47 

 proteins, 64 

 starch, 46 

 sucrose, 41 

 Hyperacidity, 119 

 Hypoacidity, 119 



Hypobromite solution, preparation of, 375 

 Hypoxanthine, 236, 245, 265, 294 



formula for, 241 



Hypoxanthine silver nitrate, crystalline 

 form of, 245 



Ichthulin, 87 

 Ignotine, 236 



formula for, 241 

 Imide bonds, 66 

 Indican, 162, 279, 312 



formula for, 163, 280 



Giirber's reaction for, 281 



Jaffe's test for, 280 



Lavelle's reaction for, 281 



Obermayer's test for, 281 



origin of, 162, 279 



Rossi's reaction for, 281 

 Indigo-blue, 163, 280 



formula for, 163, 280 

 Indigo in urinary sediments, 344, 351 

 Indole, 162 



formula for, 162 



origin of, 162 



test for, 1 68 



Indole-amino-propionic acid, 73 

 Indoxyl, 162, 279, 280 



formula for, 162, 280 

 Indoxyl, origin of, 163, 279 



potassium sulphate (see Indican, pp. 



162-163, 279) 

 Indoxyl-sulphuric acid, 162, 279 



formula for, 162, 280 

 Infraproteins (se.e Metaproteins, 87) 

 Inorganic physiological constituents of 



urine, 295 

 Inosinic acid, 236 



formula for, 241 



Inosite, 21, 305, 339 



formula for, 339 



in urine, 305, 339 

 Intestinal juice, 143 



enzymes of, 143 

 preparation of, 143 

 Inulase, 47 

 Inulin, 22, 46 



action of amylolytic enzymes on, 47 

 58 



Fehling's test on, 47 



hydrolysis of, 47 



iodine test on, 47 



reducing power of, 46 



solubility of, 46, 47 



sources of, 46 

 Inversion, 41, 43 



Invertases, experiments on, u, 144 

 Invertin (see Sucrase, p. 41) 

 Inverting enzymes, 3 

 Invert sugar, 41, 144 

 Iodide of dextrin, 48 



of starch, 44 



Iodine test, 25, 44, 47, 48 

 Iodine-sulphuric acid test for cholesterol; 



158, 251 



lodoform test for alcohol, 42 

 lodothymol compound, 329 

 Iron in blood, 189, 195 



detection of, 195 



in bone ash, 234 



detection of, 234 

 Iron in protein, 62 

 Iron in urine, 265, 303 



detection of, 304 

 Isoleucine, 77 

 Isomaltose, 21, 40, 55 



Jaffe's reaction for creatinine, 278 

 Jaffe's test for indican, 280 

 v. Jaksch-Pollak reaction for melanin, 341 

 Jejunum, epithelial cells of, 140 

 Jolles' reaction for protein, 98, 316 



reagent, preparation of, 98, 316 

 Juice, gastric, 118-122 



pancreatic, 140-143 



intestinal, 143 



Kastle's peroxidase reaction, 222 

 Kephalin, 248, 250 

 Kephyr, 40 

 Keratin, 86, 227 



experiments on, 227 



solubility of, 227 



sources of, 227 



sulphur content of, 227 

 Ketone, 21, 26 

 Ketose, 21 

 Kjeldahl method for determination of 



nitrogen, 381 



Knoop's color reaction for histidine, 74 

 Knop-Hiifner hypobromite method for 



determination of urea, 374, 376 

 Konto's reaction for indole, 169, 181 

 Koppe's electrolytic dissociation theory, 

 119 



