574 



SUBJECT INDEX 



Vitamin D (continued) 

 distribution of, 328-335, 362, 366, 372, 



374, 377, 387, 406, 427, 428, 435, 



437, 438, 446, 459, 460, 462, 466, 



474, 483, 487, 489, 493 

 effect of mineral oil on assimilation 



of, 385 

 of overdosage, 448 

 of solvent in formation of, 311 

 of temperature on stability of, 328 

 of time of irradiation on stability 



of, 311, 328 

 of wave-length of light on forma- 

 tion of, 313 

 effect of, on calcium and phosphorus 



in body, 323, 325, 326, 413, 478, 



482 

 on response to parathyroid extract, 



464 

 energy required for formation of, 309 

 extraction from plant tissues, 328. 



See also concentration of 

 food sources of, 328-335, 374, 387, 



406, 427, 428, 435, 437, 466, 474, 



483, 487 

 formation of, 300-303, 305-314, 330- 



335, 458, 465 

 in growth, 300, 326, 357 

 in irradiated foods, 300-303, 332-335, 



374, 386, 429, 487, 494 

 in plankton, 332 

 in plant tissues, 328, 329 

 in tuberculosis, 388 

 increase of, in milk by feeding cod- 

 liver oil, 334 

 intensity of light in production of, 313 

 line test for, 314-317, 374 

 measurement of, 314-328, 374 

 minimum detectable amount, 317, 374 

 nature of, 303-314. See also general 



account of vitamin D 

 oils as source of, 330. See also names 



of individual oils 

 origin in nature, 330-332. See also 



distribution 

 production of, by cathode rays, 310 

 by floridin, 331 

 by irradiation, 300-303, 305-314, 



332-335, 374, 386, 429, 487, 494 

 from ergosterol, 305-314 

 in foods, 332-335, 374, 386, 429, 



487, 494 

 photosynthesis of, 300-303, 305-314, 



330-335, 405, 458, 465, 489 

 proof of existence of, 293-296 

 quantity estimated as detectable, 317 

 relation to ergosterol (and choles- 

 terol), 305-314, 489 

 seasonal variations, 329, 330, 332, 334 

 specificity of ergosterol as precursor, 



305-314, 489 

 spectroscopic studies of, 327 



Vitamin D (continued) 



stability of, 303-305, 328-332, 362, 421, 



423, 438, 470 

 standard solution for reference in 



measurements of, 328 

 standardization in butter and mar- 

 garine, 395 

 storage in body, 293, 294, 319-321 

 temperature coefficient for formation 



of, 310 

 theory as to synthesis by cod, 331 

 "unit" of, 317, 328 

 Vitamin E, 54, 82, 336-349, 368, 391, 

 392, 437, 439, 458, 459, 469, 502, 

 511-513, 515, 521 

 chemical properties, 341, 345-349, 391, 



458 

 concentration of, 347-349, 392 

 deficiency, 341-344, 391, 392, 439, 458, 



459 

 destruction of, 341, 392, 458 

 determination of, 338-341 

 distribution of, 336, 338-341, 392 

 evidence of existence, 337-338, 469 

 in foods, 336, 338-341, 437 

 initial fertility, 337 

 occurrence, 336, 338-341, 392 

 physical properties, 345-349 

 relation to metabolism, 341-344, 368, 



391 

 stability of, 341, 345-349, 391, 458 

 storage in body, 337, 342, 343 

 synthesis, 336, 338-341, 392 

 Vitamin F, 22 



Vitamin G, 22, 23, 82, 90, 91, 94, 100, 

 102-105, 109, 111-147, 286, 363, 

 365, 368, 370, 371, 394, 395, 408, 

 422, 429, 447, 467, 482, 499 

 activity of Levene concentrate, 129 

 adsorption of, 63, 64, 123, 124, 408 

 apparent losses in presence of air and 



alcohol, 136 

 concentration of, 126-129, 135 

 deficiency of, 140-147, 394 

 determination of, 129-135, 365, 371 

 differentiation from vitamin B, 111- 



126, 135 

 distribution in body and in foods, 137- 



140, 368, 422, 429, 467, 482 

 evidence of existence, 111-126 

 experiments with ultra-violet light, 



124-126 

 extraction experiments, 135-136 

 in foods, 137-140, 422, 429, 467, 482 

 in normal nutrition, 145-147 

 measurement of, 129-135, 365, 371 

 occurrence, 137-140, 368, 422, 429, 



467, 482 

 precipitation of, 126-129 

 probable relation to longevity, 146 

 to renal enlargement on high pro- 

 tein diet, 145, 395 



