6 3 6 



INDEX 



Tyrosine, crystalline form of, 76 



experiments on, 86 



formula for, 77 



Hoffmann's reaction for, 86 



in urinary sediments, 463 



microscopical examination of, 86 



Mdrner's test for, 86 



occurrence of, 65, 67, 69, 186 



Piria's test for, 86 



salts of, 77 



separation of, from leucine, 85 



solubility of, 86 



sublimation of, 86 

 Tyrosine-sulphuric acid, 86 



v. Udransky's test for bile acids, 208, 434 

 Uffelmann's reagent, preparation of, 170 



reaction for lactic acid, 170 

 Unknown substances in urine, 454 

 Unorganized ferments, I 



sediments in urine, 457, 458 

 Unsaturated acids, 177 

 Uranium acetate method for determination of 



total phosphates in urine, 552 

 Uracil, 125, 128, 133 



Wheeler-Johnson reaction for, 133 

 Urate, ammonium, crystalline form of, Plate VI, 



opposite p. 462 



sodium, crystalline form of, 462 

 Urates in urinary sediments, 461 

 Urea, 248, 274, 34 1, 372, 491 

 crystalline form of, 372 

 decomposition of, by sodium hypobromite, 



374. 496 



excretion of, 372, 374 

 experiments on, 375 

 formation of, 373 

 formula for, 372 

 furfural test for, 377 

 isolation of, from the urine, 375 

 melting-point of, 375 

 quantitative determination of, in blood, 274 



in urine, 491-499 

 Urea nitrate, 374, 376 



crystalline form of, 374 

 formula for, 374 

 oxalate, 374, 376 



crystalline form of, 376 

 formula for, 374 

 Urease, 4 



decomposition of urea by, 491 



preparation of, 491 

 quantitative determination of urea by, 274, 



491 



Uremia, blood in, 270, 271 

 Urethral filaments in urinary sediments, 465, 



473 

 Uric acid, 26, 127, 133, 137, 248, 270, 274. 34L 369, 



377-38i, 460, 476, 510, 571, 573 

 calculi, 476 



crystalline form of, pure, 380 

 endogenous, 378, 573 

 exogenous, 378, 571 

 experiments on, 380 

 formula for, 377 

 Ganassini's test, 381 

 in blood, 248, 270, 274 

 in leukaemia, 379 



Uric acid in urinary sediments, 460 



crystalline form of, Plate V, oppo- 

 site p. 380, 461 



isolation of, from the urine, 380 

 metabolism, 571, 573 

 murexide test for, 380 

 origin of, 378 



quantitative, determination of, in blood, 

 Benedict's method, 275 

 Folin-Denis method, 274 

 in urine, microchemical colo- 



rimetric method, 510 

 Folin-Shaffer method, 5 1 1 

 Heintz method, 5 12 

 Kruger-Schmidt method, 



513 



Uricometer method, 5 13 

 quantitative determination of, Kruger 



and Schmidt's method for, 5 13 

 Hunter and Givens' modification of, 5 15 

 reducing power of, 26, 379, 416, 417 

 Ruhemann's uricometer method for, 5 13 

 Schiff's reaction for, 381 

 Uricase, 5, 127 



experiments on, 137 

 Uricolytic enzymes, 3, 5, 127 

 experiments on, 137 

 Urinary calculi, 475 



calcium carbonate in, 476 

 oxalate in, 476 

 cholesterol in, 478 

 compound, 475 

 cystine in, 476 

 fibrin in, 478 

 indigo in, 478 

 phosphates in, 476 

 scheme for chemical analysis of, 477 

 simple, 475 



uric acid and urates in, 476 

 urostealiths in, 478 

 xanthine in, 476 



Urinary concrements (see Urinary calculi, p. 475) 

 Urinary sediments, 457 



ammonium magnesium phosphate in, 



458 



animal parasites in, 465, 474 

 calcium carbonate in, 458, 459 

 oxalate in, 458 

 phosphate in, 458, 460 

 sulphate in, 458, 460 

 casts in, 465, 467 

 cholesterol in, 458, 463 

 collection of, 457 

 cylindroids in, 465, 472 

 cystine in, 458, 462 

 epithelial cells in, 465 

 erythrocytes in, 465, 472 

 fibrin in, 465, 474 

 foreign substances in, 465, 474 

 hematoidin and bilirubin in, 458, 464 

 hippuric acid in, 458, 463 

 indigo in, 458, 464 

 leucine and tyrosine in, 458, 463 

 magnesium phosphate in, 458, 464 

 melanin in, 458, 465 

 micro-organisms in, 465, 474 

 organized, 457, 465 

 pus cells in, 465, 466 



