INDEX 



545 



Myristic, (76), 80, 230 

 1 -Myri,sto-2,3-dipalniitin, (80) 

 l-Myristo-3-palmitin. (80) 

 l-Myristo-2-palmito-3-stearin, (80) 



Nails, 301 



Naphthalenacetic acid, 282, 284, 286, 287 

 Naphthalene acetamide, 284 

 Naphthoquinones, (359-360) 

 Negative nitrogen balance, 478 

 Nephritis, 15 



Nerves, 119, 302, 315, 332, 349, 369, 390, 

 392, 403, 404 



action of, 306 R 



fibers of, 306 



impulses of, 510 



stimulation of, 354 



tissues of. composition of, 305 

 Nervous system, central, 309, 327, 381 



parasympathetic, 306, 349 

 Neurokeratin, 306 

 Neurons, (306) 



motor. 306, 307 



sensory, 306 

 Neutral solution, (37), 41 

 Nickel, 397, 403 

 Nicotinamide, 140, 337 ff, 338, 468 



biosynthesis of, 337 



deficiency symptoms of, 339 



function of, 338 



metabolism of, 338 



requirements for, 339 



sources of, 339 

 Nicotine, (196) 

 Nicotinic acid. 285, 468 

 Night blindness, 355 

 Nitrate, 225, 254, 256, 262, 26-f, 266, 397 



reduction of, 248 



toxicity of, 225 

 Nitrification, 256, 257, 265 

 Nitrite, 225, 256, 397 



Nitrogen, 5, 6, 7, 8, 244, 245, 250, 254, 

 263, 264, 270, 271, 272, 298, 407 



deficiency of, 245 



excretion of, 481 



fixation of, 226, 227, 25^ ff, 265, 279, 

 386 

 non-symbiotic, 256 

 symbiotic, 253 



organic, 266 

 Nitrogen balance, (477), 477, 478, 480, 



492 

 Nitrogen compounds, metabolism of, 



22) ft 

 Nitrogen cycle, (227) 

 Nitrogen fertilizers, 264 



Nitrogen-free extract (NFE), 407, 503 

 Nitrosomonas, 225 



ammonia oxidation of, 225 

 Nitrous acid, 101 

 Non-electrolytes, (34) 

 Non-reducing sugars, 59 

 Noradrenaline, 309, 314, 315 



function of, 315 

 Norepinephrine, 314 

 Nornicotine, (196) 

 Nuclear gel, 178 

 Nucleases, 437 



Nucleic acid, 114, 115, 120^, 214. 387, 

 468, 482, 489, 493 



composition of, 120 



metabolism of, 472 

 Nucleoproteins, 114, 115, 118, 119. 120, 



244. 472 

 Nucleosides, 120, 121,472 

 Nucleotidases, 472 

 Nucleotides, 120 ff, 468, 472 

 Nucleus, 13, (178), 77.9 

 Nutmegs, 230 

 Nutrients, 257,261, 263 



essential, 326 



oxidation of, 500 



requirements of, for domestic animals, 

 520-529 



total digestible, 504 

 Nutrition, 119,526 

 Nutritional deficiencies, 328 



Oats, 234, 410 



Oil of wintergreen, 202 



Oils, 81,240 



Oil-seed meals, 41 1 



Oleic acid, 75, (76), 77, 78, 82, 230, 231, 



324 

 /3-Oleodistearin, 231 

 Omasum. 429 

 Opsin, 353, 354 

 Optical activity, 50 S^, 102 

 Optical isomerism, 49 ff, 51, 52, 101 ff 

 Optical rotation, 49, 50, 52, 60, 65, 102 

 Optical specificity, 53, 101 

 Organic acids, 250, 273 

 Organic fungicides, 238 

 Organic matter, 251, 252 ff, 254, 263 

 Organic nitrogen, 228 ff 

 Organisms, soil, 275 

 Ornithine, 465, 484 

 Ornithine cycle, 103, 465 

 Ortho acids, 109 

 Osazones, 58 



Osmosis, 15. (35), 35, 261, 403 

 Osmotic concentration, 373, 400, 402, 403 



