CITRIN. RUTIN) 

 V:T1S (SPP.). (See GRAPE); -venitera, (See 



RAISIN) 

 VIVIPARUS VIVIPARUS, 2J0 

 VOMBATUS HIRSUrrUS. 88. 89 

 VULTUR GRYPHUS, 90 



WALKING STICK, oriental. 230 

 WALNUT. US. 120. 121. 123. 129 

 WANDERING JEW. 233 

 WARBURG'S MEDIUM, 99; -'S YELLOW 



ENZYME. 163 

 WART, 226 

 WARTHOG, 86. 87 

 WATER. In synthetic diets, insects. 92; 



In feedstutfs. 134-137; In foodstuffs, 112- 



115: metabolic end product. 181. 182. 



188; in milk, 1 1 1; and nutrient Intake. 32; 



recommended intake of. 48-74; in tropical 



and sub-tropical fruits. 124. 125 

 WATERMELON. 105. 115. 120. 121. 123. 



128 

 WAX(ES). 18. 211 

 WAYMOUTH SOLUTION. 94 

 WEEVIL, cowpea, 25 

 WESSON'S MIXTURE. 63. 92 

 WHALE, flnner, 196, 202 



WHEAT, 93. 105. 115. 120. 121. 123. 130, 

 135; -bran. 84-89. 144; -germ oU. 27. 91 



WHEY, dried. 132. 133; -protlln. Ill 



WHITE BLOOD CELLS. 222 



WHITE SOLUTION. 94 



WHITEFISH. 108. 110 



WOLF. 82. 83 



WOMBAT. 88. 89 



WOOD. ash. 104 



WOOD-WERKMAN REACTION. 14 



WOOL WASTE. 104 



WORM(S). 26. 183, 201. 208. 230. (See also 

 specific worms) 



XANTHARPYIA. (See BAT) 



XANTHINE. 13, 101. 181, 183; -OXIDASE. 6 



162, 181. 182 

 XANTHOPHYLL. 212 

 XANTHOPTERIN, 30, (See also FOLIC ACID 



GROUP) 

 XANTHOSINE, 181 

 XANTHYLIC ACID. 181 

 XYLARIA (SPP.), 45 

 XYLOSE. 25. 26. 34. 40. 41 



YEAST, 5-20. 27, 40. 41. 144; Brewer's-. 

 85, 90, 92, 134, 138; -cocarboxylasc, 6; 



-extract, 97; -oil, 27 

 YTTRIUM, 148 

 YUCCA GLORIOSA, 23J 



ZALOPHUS CALIFORNIANUS. 82 



ZAMENIS DIADEMA. 197. 203 



ZAPOTE. 125. 127 



ZEA MAYS. (See CORN) 



ZEBRA. 88. 89 



ZEBRINA PENDULA. 233 



ZEIN. 22 



ZINC, daily aUowance of. 48-74; absorption, 

 retention of. 147; deficiency signs of. 154, 

 169. 171; excretion of, 147. 214; in food- 

 stuffs. 117. 119. 121; functions of. 154, 

 166; metabolism of. 153; in milk, 111; as 

 nutrient. 6, 21. 32, 33. 172. 174. 175; and 

 soil pH. 172. 173; toxicity signs of, 167; 

 -SALTS, in culture media. 98. 99. 101; in 

 nutrient solutions for plants. 95; functiotis 

 of, 154 



ZIRCONIUM, 148 



ZOO ANIMALS, diets for, 82-90 



ZYGORHYNCHUS (SPP. ), 45 



ZYGOSACCHAROMYCES (SPP.), 45, 202-208, 



238 

 ZYMOSTEROL, 28 



380 



\ 



