SUBJECT INDEX 



559 



Edestin, 324 

 Egg albumin, 316, 375 

 fat, 21, 226, 253 

 plant, 268, 517 

 white, 130, 160 



yolk, 52, 87, 138, 140, 160, 175, 176, 

 250, 271, 272, 321, 329, 332, ZZZ, 

 335, 339, 360, 369, 381, 416, 417, 



418, 452, 475, 476, 506, 518 

 Eggs, 87, 88, 92, 94, 138, 160, 223, 250, 



253, 270, 271, 329, 339, 411, 413, 

 427, 428, 434, 457, 467, 471, 474, 



477, 488, 497, 518, 528 

 Embryo, 75, 90 

 Emprosthotonus, 80 

 Endive, 148, 197 

 Endosperm, 90, 246 

 Endothelium, 163 



Energy, radiant. See Irradiation 



Enzymes, 79, 195, 355 



Ensilage, 209, 456 



Eosin, 407 



Epithelium, 280, 283, 286, 529. See also 

 Vitamin A deficiency; also In- 

 fection 



Ergosterol, 305-314, 317, 322, 327, 328, 

 332, 356, 358, 360, 362, 363, 365, 

 369, 374, 375, 381, 387, 393, 395, 

 400, 405, 407, 409, 414, 416, 417, 



419, 420, 426, 427, 434, 438, 439, 

 440, 442, 446, 447, 460, 465, 474, 



478, 479, 485, 489, 496, 502, 503, 

 504, 505, 515, 517, 522. See also 

 Vitamin D 



absorption spectrum of, 306, 309, 327, 

 414, 465 



as precursor of vitamin D, 305-308, 

 489 



chemical nature of, 306, 460, 489 



efifect of time of irradiation, 309, 311 



estimation of amount in cholesterol, 

 307 

 Ergosterol, irradiated, absorption spec- 

 trum of, 306, 307, 309, 312 



amount for cure or prevention of 

 rickets, 307, 313 



effect of solvent on antirachitic po- 

 tency of, 311, 312 



effects of excessive doses of, 309, 381, 

 409, 427, 438, 446 _ 



nature of products of irradiation of, 

 309-314, 489 



optical rotation of, effect of irradia- 

 tion on, 312 



radiant energy required to form 

 vitamin D from, 309 



standard solution of, 317, 327, 328 

 Ergot, 460 



Ergothioneine hydrochloride, 50 

 Escarole, 268 



Ether, 226-228, 310, 312, 328, 345, 348, 

 349 



Ethyl acetate, 31, 312, 345 



Ethyl alcohol, 345 



Ethylene, 188, 234, 253, 357 



Exercise, effect on vitamin require- 

 ments, 436 



Experimental period, length of, in 

 measurements of vitamin values, 

 266, 267. See also under each 

 Vitamin, determination 



Extraction of vitamins. See under each 

 Vitamin 



Eye disease, 144, 224, 274, 275, 276, 277, 

 278, 279, 444, 490, 524, 531. See 

 also Vitamin A ; Vitamin G ; and 

 Ophthalmia 



Factors, chemical, in superior nutrition, 

 286. See also under each Vita- 

 min, relation to health or to nu- 

 trition 

 which may interfere in measurement 

 of vitamin values, 129-135 



Farina, 494 



Fasting, 501, 502, 525. See also Starva- 

 tion 



Fat, relation to vitamin B requirement, 

 82, 83, 392 



Fat-free diet, 225 



Fat-soluble A, 21, 157. See also Vita- 

 min A 

 factor, 52, 53, 531. See also Vitamins 



A, D, E 

 vitamins, 417, 421. See also Vitamin 



A, Vitamin D, Vitamin E 



Fats, 52, 138, 223, 238, 253, 270, 271, 



302, 339, 356, 367, 372, 383, 392, 



396, 398, 405, 408, 415, 421, 430, 



452, 466, 468, 472, 473, 476, 503 



commercial, 253 



Fatty oils, 439 



Fearon reagents, 239 



Feces, 84, 130 

 vitamins in, 84 



Feeding, as influencing vitamin A con- 

 tent of body, 254 

 of breeding-stock for production of 

 rats for vitamin A testing, 259, 

 260 _ 



Fermentation, 505 



Ferric chloride, 341 



Ferric phosphate, 35. See also Vitamin 



B, concentration of 

 Fertility, 378, 423. 458, 512, 513, 518 

 Fertilizers, 429, 470 



Fever, 283. See also Infection 



Figs, 269 



Fir tops as antiscorbutic, 197 



Fish, 149, 251, 252, 271, 330, 331, 364, 

 375, 382, 445, 493, 510 

 dried cooked, 149 

 meal, 364, 493, 510 

 oils, 330, 335, 354, 470, 523 



