636 PRACTICAL ORGANIC AND BIO-CHEMISTRY 



Urates, sediments in urine, 565, 567. 



Urea, 129, 131-136, 159, 160, 161, 165, 167, 



277, 278, 279, 282, 287, 288, 291, 293, 



398, 539- 



estimation, 134-136. 



in blood and tissues, 580, 583. 



urine, 552-553, 560. 



nitrate, 131, 132. 



oxalate, 131, 132. 



preparation from urine, 131. 

 Urease, 136, 539, 552, 556, 560. 

 Ureides, 277-281. 



cyclic, 276, 277, 282. 

 Ureometer, Dupre's, 134. 

 Uric acid, 278, 279, 280, 286, 287-292, 294, 

 298, 395, 398, 582. 



estimation, 292. 



(blood and tissues), 580, 584. 



urine, 554, 557, 561. 



preparation from urine, 289. 



urinary deposits, 565, 567. 



Uricase, 298, 395. 

 Urine, 539-572. 



acidity, 550. 



allantoine, 278-279, 553, 



amino acids, 551-552. 



ammonia, 551, 560. 



calcium, 546. 



calculi, 287, 293, 568. 



chlorides, 540. 



colour, 539. 



creatine, 166, 555, 562. 



creatinine, 169-170, 555, 562. 



cystine deposits, 567. 



deposits, 565-567. 



ethereal sulphates, 542-543. 



haematoporphyrin, 484, 564. 



hippuric acid, 142. 



indican, 345. 



iron, 547-548- 



magnesium, 546. 



mucoid, 471. 



nitrogen, total, 552, 558, 563. 



pathological, 570-572. 



pigments, 564. 



phenol, 245. 



phosphates, 544-545- 



phosphorus, total, 545. 



potassium, 548-550. 



reaction, 539. 



sediments, 565-567. 



sodium, 548. 



specific gravity, 539. 



sulphates, 54 J -543. 



tyrosine deposit, 567. 



undetermined nitrogen, 538. 

 - urea, 129, 131, 552-553, 560. 



uric acid, 287, 289, 554, 561, 565. 



urorosein reaction, 347. 



volume, 539. 

 Urobilin, 564. 

 Urobilinogen, 564. 

 Urocanic acid, 284. 

 Urochrome, 564. 

 Uroerythrin, 564, 565. 



Urorosein reaction, urine, 347. 

 Urostealiths, 568. 

 Urotropin, 82, 551. 

 Ursocholeic acid, 328. 



VALBRIANIC acid, 98. 



Valeric acid, 98. 



Valine, 98, 137, 361. 



Vanillin, 271. 



Van Slyke'g method (amino nitrogen), 146 



149- 



Vaseline, 51. 



Vegetable globulins, 450-451. 

 - proteins, 361, 362, 450-451. 



proteoclastic enzymes, 410. 

 Vegetables, protein content, 450. 

 Veratric acid, 271. 



Veratrol, 262. 



Vernine, 301. 



Veronal, 280. 



Vicianin, 202. 



Vicianose, 197, 202. 



Vicilin, 450. 



Victor Meyer's method (molecular weight), 



42. 



Vinasses, 63. 

 Vinegar, 96. 

 Vinyl chloride, 56. 

 Violuric acid, 280, 281, 288. 

 Viscosity, colloidal solutions, 380, 383, 384. 

 Visibility of colloidal particles, 379. 

 Vitamines, 537. 

 Vitellin, 463, 464. 

 Volatile fatty acids, 93. 



oils, 312-318. 



Volhard's method (pepsin), 423. 



Von FleischPs method (haemoglobin), 486. 



WAXES, 175. 



Weyl's test (creatinine), 171. 



Wheat nucleic acid, preparation, 302. 



Wheat, proteins, 452-453. 



Whey, 459, 4^2- 



Will and Varrentrapp's method (nitrogen), 



29. 



Witte's peptone, 371, 372, 373, 49, 427- 

 Wohlgemuth's method (diastase), 418. 

 Wood spirit, 63. 



tar, 63. 



XANTHINB, 280, 286, 293, 295, 298, 299, 301, 



calculi, 293, 568. 



oxidase, 298. 

 Xanthones, 338. 



Xanthophyll, 519, 523, 524, 527, 530-531, 532. 

 Xanthoproteic reaction (proteins), 366. 

 Xanthorhamnin, 185, 189. 

 Xylenes, 240, 252, 260, 263, 264. 

 Xylose, 184, 185, 197- 



YEAST, 391, 401. 



Yeast nucleic acid, preparation, 302. 



ZYMASE, 395, 403, 419. 



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