INDEX 



401 



Uinbelliferie, 386. 

 Unsaponifiable residue of fats, 15. 

 Unsaturated compounds, g. 

 Urea in plants, ^6g, 330. 

 Urease, 338. 

 Uric acid, 269. 

 Urine, ig8. 

 Urtica, 228, 231, ^^7. 

 Utriciilaria, 124, 192, 215. 



Vaccinium Vitis Idcea, 171, 199. 



— Myrtillus, 375. 

 Valine, 305. 

 Valonia, 207, 213. 

 Vanilla, 35. 



— planifolia, 186. 

 Vanillin, 186. 

 Varnish, 4. 

 Vauchcria, 2, 35. 

 Veratrine, 200. 

 Vefatnun sabadilla, 200. 

 Vcrbascian Thapstis, 17. 

 Vicia Faba, 225, 313, 349. 



— saiiva, 44, 265, 269, 311. 

 Violacete, 112. 



Vigna sinensis, 313. 

 Viscoid, 140. 

 Viscose, 131, 140. 

 Vitis, 377. 



Walnut oil, 4, 20. 

 Wash wood, 181. 

 Water melon oil, 20. 



Wax 



chemical significance of term 



composition, 6, 42 ; function, 

 occurrence, 42, 227. 

 Weld, 240. 



Wheat, 66, 118, 312, 314, 336. 

 Wheat meal oil, ig. 

 Wijs' iodine value of fats, 31. 

 Willow, 171. 

 J Wood gum, 55, 57. 

 vWound gum, 123. 



Xanthine, 267, 271. 



Xanthone, 239. 



Xanthophyll, 227, 236, 237, 252. 



Xanthoproteic reaction, 297, 298. 



Xeranthemum, 174. 



Xerophytes, 125. 



Xylose, 51, 57. 



Yeast, 71, 105, 106, 118, 1G7, 268,328, 

 363, 364 ; action on amino acids, 329 ; 

 fermentative activity, 108 ; see also 

 Sacchayomyccs. 



Yellow wood, 240. 



Yew, 196. 



Ylang Ylang, 375. 



Yucca, 112. 



Zea Mais, 174, 179, 335, 336, 375. 

 Zygnenia, 191. 



Zymase, 71, 339, 364-7, 373; quanti- 

 tative estimation of activity, 373, 

 Zymo exciters, 289. 



N. C. State ColW 



ABERDEEN : THE UNIVERSITY PRESS 



