INDEX 



319 



Urea, (Continued) 



in saliva, 168. 



in soil, 249. 



in urine, icxj, 227. 



isolation of, from urine, 227, 231. 



synthesis of, 99. 

 Ureometer, 10 1. 

 Uric acid, 82, 97, 102, 103, 223, 228. 



in blood, 223. 



in virine, 228. 

 Urine, 209, 226-231. 



albumin in, 230. 



ammonia in, 228. 



constituents of, 227. 



creatinine in, 228. 



distribution of nitrogen in, 229. 



experiments, 231. 



general properties of, 230. 



glucose in, iii, 229. 



hippuric acid in, 229, 



isolation of urea from, 227. 



nitrogen compoimds in, 227. 



nitrogen excretion in, 205. 



pathological constituents of, 229. 



total nitrogen of, 205. 



urea in, 227. 



uric acid in, 228. 



Valeric acid, 47. 

 Valine, 85. 

 Vanilla, 287. 

 Vanillin, 287. 

 van't Hoflf, 71, 79. 

 Vegetable ivory, 272. 

 Vinegar, 50. 

 experiments, 51. 



Volatile and nonvolatile constituents, 

 147. 



experiments, 152. 



in plants, table, 150. 

 von Schwaim, 32. 



Water, assimilation of, in plants, 



238. 

 Waxes, 57. 



in plants, 277. 



table, 62. 

 Westphal balance, 215. 

 Wheat bran, 1 10. 

 Whey, 212, 217, 

 Whisky, 37. 



White corpuscles, 220, 222. 

 Wine, 36. 



Wirzung, duct of, 176. 

 Wohler, 99. 

 Wood alcohol, 26, 29. 

 Wood gum, no. 

 Wood vinegar, 50. 

 Work, and heat, 157. 



muscular, 157, 233. 



Xanthine, 97, 103. 



dimethyl, 103. 



trimethyl, 103. 

 Xanthoproteic reaction, 96. 

 Xylose, no. 



Yeast, 32, 113. 



ZuNTZ, 299. 

 Zymase, 32, 113, 145. 

 Zymogens, 143. 



Printed in the United States of America. 



