91, 

 , (See 



meUboUsm of. 180. 188; as nutrient. 7. 

 23. 24. 35-31: in proton foods. 131; 

 stability of. Ml 

 LEUCOCYTE, 222. 226 

 LEUCONOSTOC (SPP.). 8. 11-13. 37. 47. 



100. 175. 220, 240 

 LEUCOPHOENICIN. 218 

 LEUCYLDIGLYCINASE. 154 

 LEUCYLPEPTIDASE. 154 

 LEVAN. 218 



LEVULOSE. (See FRUCTOSE) 

 LEWIS' MEDIUM. 99 

 LICHENS, 238 

 LIGHT, effect of on nutrient subUity, 



140. 141 

 LIGIA OCEANICA. 199. 206 

 LIGUSTRUM LUCIDUM. 233 

 LILIUM LONGIFLORUM. 105 

 LILY, Easier. 105 

 LIMAX AGRESTIS, 200, 207 

 LIME (fruit), 113,118, 119, 122. 124. 126 

 LIME, (mineral). 103. (Sec also CALCIUM) 

 LIMNAEA STAGNALIS. 200. 207. 230 

 LIMNOTRACUSSPEKU, 86. 87 

 LINCOLN PARK ZOO. diets of animals in. 



82-89 

 LINOLEIC ACID, functions of, 163; in milk, 

 111; as nutrient. 9. 28-30; 57. 59; 

 stability of. 141; in synthetic diets. 

 (See also ACIDS. FATTY) 

 LINOLENIC ACID. 9. 28. 57, 59, 163 



also ACIDS. FATTY) 

 LINSEEX) OIL MEAL. 143 

 LINUM USITATISSIMUM. (See FLAX) 

 LION. 82, 83 



LIPID(S). in synthetic diets. 91; digestion 

 of, 179; production of by fungi. 219; 

 meUbolism of, 152. 186, 187; as nutrient, 

 8. 9. 27, 28, (See also tats, triglycerides 

 phospholipids, waxes; see alsospecific 

 lipids) 

 LIPOIC ACID, 11, 15. 20. 31. 187. 189 

 LIPOTHI AMIDE. II. 15 

 LIPOTROPIC FACTOR. 159 

 LITCHI CHINENSIS. 124. 126 

 LITHIUM. 147, 173 

 LITTORINA LITTOREA. 200. 206 

 LIVER, composition of. 106, 109, HO; 



-damage, 153; in zoo diets, 90; -extract, 

 69; ferritin in, 192; retention of ionogens in 

 147-149; -meal, 143; minerals in. 150. 151 

 nutrients in. 93; oxygen consumption of, 

 224, 225; -protein. II 

 LIZARD. 197. 203 

 LLAMA. 86. 87 

 LOBSTER. 108. 110 

 LOCKE'S SOLUTION. 94 

 LOCUST, black. 105 

 LOIN. veal. 107. 110 

 LOPHIUS PISCATORIUS. 198. 204 

 LOPHODERMIUM PINASTRI, 43 

 LOQUAT. 124 



LOXOtXDNTA (SPP.). 88. 89 

 LUCILIA SERICATA. 21. 24, 27. (See also 



LUMBRICUS(SPP.). (See EARTHWORM) 



LUNG, 223. 224 



LUNGFISH, 198. 204 



LUTEIC ACID, 218 



LUTEOLEERSIN, 217 



LUTEOSE, 218 



LYCHEE, 124. 126 



LYCOMARASMIN, 219 , 



LYCOPERSICON ESCULENTUM, (Sec TOMATO) 



LYCOPERSIN, 218 



LYCOSA (SP.), 253, 254 



LYCTUS (SPP.), 25 



LYMPH NODES, 222 



LYNX, Yukon, 82, 83 



LYSINE, in culture media, 100; excretion of, 

 210; metabolism of, 180; as a nutrient, 8, 

 24, 35-37; in proteins, 131; requirements 

 of, 23; stability of, 141 



LYXOFLAVIN.(S«c RIBOFLAVINE) 



LYXOSE, 25. 26 



MACACA(SPP.). 66. 84, 85 



MACKEREL, 83. 90 

 MACROCHELES (SP.). 253, 254 

 MACROPUS(SPP.). 88. 89 

 MACROSPINUM ROSAE. 21 

 MADURELLA AMERICANA. 43 

 MAGNESIUM, absorption, retention of. 147; 

 daily allowances of. 48-74; deficiency symp- 

 toms of. 167. 168. 170; excretion of. 147, 

 214; in fertilizers, 102-104; in foodstuffs, 

 117, 119, 12l;functlonsot. 165; in metabolic 

 reactions, 187, 189; metabolism of, 151; 

 in milk, HI; as a nutrient, 5. 21. 33. 174. 

 175; in nutrient solutions for plants, 32; 

 toxicity symptoms of, 167; and soil pH, 172 

 MAGNESIUM SALTS. 92. 94-96. 98. 99. 101 

 MAGNESIUM PROTOPORPHYRIN. 193 

 MAGNESIUM VINYL PHEOPORPH YRIN. 



PHYTL ESTER, 193 

 MAGNOLIA (MAGNOLIA GRANDIFLORA), 105 

 MAJA SQUINADO, 199, 206 

 MALACOSOMA NEUSTRIA. 26 

 MALESSEZIA FURFUR. 43 

 MALATE, 15, 34, 180, 189, 216 

 MALIC AClD,(See MALATE) 

 MALIC DEHYDROGENASE, 189 

 MALIC ENZYME, 189 

 MALIGNANT TUMORS, 226 

 MALONIC ACID, 181, 216 

 MALPHIGIA PUNICIFOLIA, 125. 127 

 MALTASE. 178 



MALTOSE. 25. 26. 34. 38-41. 178 

 MAMMALS, 10. 82-89. 147-149. 153. 15', 

 164, 177-179, 182, 186, 192. 196. 202. 

 203. 224; (See also specific mammals) 

 MAMMARY GLANDS, 229 

 MAN, 8, 23, 48-59, 75, 76, 111, 145. 153- 



163, 196. 202. 241-244 

 MANGANESE, absorption, retention of. 147. 

 daily allowances of. 48-74; deficiency of 

 and reproduction. 164; deficiency, signs 

 ot 154, 167. 168. 170; excretion of. 147. 

 214; in teedstutfs. 133. 138. 139; in food- 

 stuffs. 117. 119. 121; funcUons ot. 154. 

 165; in metabolic reactions. 184. 185. 189; 

 meUbolism ot. 151; m milk. Ill; as nu- 

 trient. 5. 6. 21. 33. 174. 175; in nutrient 

 solutions, plants. 32. 95. 97-99.101; and 

 soil pH. 172; toxicity symptoms ot. 154 

 MANGO (MANGIFERA INDICA). 113. 118. 



119, 123, 124, 126 

 MANGOSTEEN. 124. 126 

 MANNITOL. 16. 25, 26, 40. 41 

 MANNOKINASE. 184 

 MANNONIC ACID. 216 

 MANNOSE, 25, 26, 38, 39, 184 

 MANNOSIDE, methyl. 25. 26 

 MANURE. 102. 104 

 MANZANILLA. 124. 126 

 MAPLE, sugar. 105 

 MARASMIUS (SPP.). 43. 215 

 MARIGOLD. African. 96. 97 

 MARMOSET, red-headed, 84. 85 

 MAHTINIA PANAMAENSIS. 43 

 MARSUPIALIA, 88. 89 

 MASH. 72 



MATTIIIOLA INCANA. 105 

 Mc COLLUMS MIXTURE. 92 

 MEAL, blood, 132, 133 

 MEALWORM, 14. 22, 24. 25, 27-29. 91, 92, 



230 

 MEAT, (See also specific meaU and meat 

 products), composition ot, 106, 107, 

 109 110, 143; in diets of man, 75, 76; 

 in diets ot zoo animals, 82, 85, 87. 89. 90 

 digestibUity ot. 143; nutrient loss in cooking 

 of. 142; as source ot nutrients. 93 

 MEAT AND BONE SCRAP. 132. 133 

 MEDIA, culture. (See also SOLUTIONS), tor 

 algae, 99; tor bacteria. 100, 101; for fungi, 

 98, for animal tissue. 94; for plant tissue. 

 96. 97 

 MEDICAGO SATIVA. (See ALFALFA) 

 MEDULLA. 227. 228 

 MELANCONIUM (SPP.). 39. 43 

 MELANOPUS(SPP.). (See GRASSHOPPER) 

 I MELANOSPORA DESTRUENS. 43 

 JMELEZITOSE, 25. 26. 40. 41 



180; 



MELIBIOSE. 25. 26. 40, 41 

 MELICOCCA BIJUGA, 125, 127 



MELILOTUS ALBA.(See SWEETCLOVER) 



MELLEIN, 216 



MELON,(See HONEYDEW MELON, WATER- 

 MELON) 



MEMNONIELLA ECHINATA. 39. 43 



MENADIONE, (See VITAMIN K) 



MENSTRUAL CYCLE, 164 



MERCAPTOPYRUVIC ACID, 180 



MERCURY, 21, 148, 214 



MERULIUS (SPP.). 43. 215-217 



METABOLIC PATHWAYS, amino acids, 

 carbohydrate. 184. 188; iron. 192; 

 lipid. 186-189; muscle activity. 190; 

 nucleoproteins. 182; protein. 188. 189; 

 purine and pyrimidine nucleotides, 181 



METABOLIC PRODUCTS, 196-221, (See also 

 specific metabolic products) 



METABOLIC RATE(S), 154. 253. 254 



METABOLISM. (See also catabolism). amino 

 acid, 180; basal, man, 241-243; carbo- 

 hydrate, 184, 185. 188, 189, 215-221; 

 effect ot essential elements on, 165, 166; 

 energy, 32, 241-254; fasting, 251, "2; 

 iron, 192; via Krebs Cycle, 189; lipid, 186- 

 189; mineral, 150-153; muscle activity. 190; 

 nucleoproteins and derivs. 181-183; corre- 

 lation ot nutrients with. 32; of protein, 182. 

 183, 188, 189; resting, 245-252; in soil 

 organisms, 253. 254; ot vertebrates. 244- 



METABOLIZABLE CALORIES, 132. 134-137 

 METHANOBACTERIUM OMELIANSKI. 176 

 METHANOSARCINA BARKERU, 18 

 METHANOL, 34, 193 

 METHIOLBUTYRIC ACID. 180 

 METHIONINE, deficiency of and reproducUon. 

 164; as methyl donor. 157; excreUon ot. 210; 

 metabolism ot. 180. 188; in animal metabo- 

 lism. 152; as nutrient. 8. 20, 23, 24, 36, 37, 

 57 61, 67, 72. 100; in proteins, 131; sta- 

 bility o', l*'- (See also SULFUR, SULFUR 

 CONTAINING AMINO ACIDS; also under 

 AMINO ACIDS) 

 METHIONINE SULFOXIDE. 20, 211 

 METHYLATED CARBOHYDRATES, 25, 26 

 METHYL ALCOHOL, (See METHANOL) 

 METHYL GROUPS. 153, 156, 157 (See also 



LABILE METHYL GROUPS) 

 METHYLAMINE. 17 

 METHYLBUTVRIC ACID, 180 

 METHYLCARBINOL, acetyl, 221 

 METHYL GLYOXAL, 216 

 METHYL SALICYLIC ACID. 216. (See also 



MELLEIN) 

 METHYL TITRONIC ACID. 216 

 METHYLVALERIC ACID. 180 

 MICROCOCCUS (SPP.). 240 



MICROORGANISMS. (See also FUNGI. ALGAE. 

 BACTERIA. YEASTS; see also specific 

 microorganisms), denitritication by. 194 

 MICROSPORUM (SPP.). 43 



MIDBRAIN. 228 ,,,,,, i,,. 



MILK, composition ot. 106. 109. HI. Ui. 13», 



in diets tor man, 75, 76; in diets for zoo am- 



mals, 82-85; digestibility ot, 143: as nutrient 



source, 59, 68, 93 



MILK, skimmed, 132, 133 



MILKWEED, swamp, 234 , , j „ 



MINEHAL(S), (See also specific minerals), dally 

 allowances ot, 48-74; loss ot in cooking, 142; 

 in culture media, 32; deficiency symptoms of. 

 167-171; excretion ot, 214; in feedstuffs, 133, 

 138 139; in fertilizers, 102-104; m 

 foodstuffs, 106-110, 116-121; tunctions of, 

 150-154. 174-176; in milk, 11 1; as nutrient, 

 5 6 21. 33: and soil pH. 172. 173: toxicity 

 symptoms of. 167; in tropical and sub-tropi- 

 cal fruits. 124-127 

 MINERAL METABOLISM. 150-153 

 MINERAL OIL; 18 

 MINERAL SALTS. (See specific compounds as 



calcium salts, iron salts) 

 MINIOLUTEIC ACID. 216 

 MINK. 64 

 MINNOW. 198. 204 



374 



