SUBJECT INDEX 



565 



Oils, 302, 328, 383, 392, 407, 414, 482 

 See also under name of each 



Okra, 94 



Old vs. young fresh vegetables as 

 sources of vitamin C, 194 



Oleo oil, 332, 422 



Oleyl alcohol, 237 



Olive oil, 225, 253, 270, 301, 304, 305, 

 324, 328, 332, 2:^2,, 340, 341, 433, 

 486 



Onions. 197, 269 



Ophthalmia, 17, 20, 143, 224-225, 261, 

 274, 294, 299, 300, 316, 434, 450, 

 453, 465, 473, 474, 507, 522 

 "salt," 453 

 See also Xerophthalmia 



Opisthotonic, 104 



Opisthotonus, 80, 81, 104 



Opsonins and vitamin deficiency, 394 



Optical activity of ergosterol on irradia- 

 tion, 312 



Orange peel, 153, 186 



Orange rind oil, 240 



Oranges and orange juice, 13, 14, 

 93, 152, 156, 158, 161, 163, 167, 

 168, 176, 178, 182, 184, 185, 186, 

 269, 340, 367, 400, 403, 411, 431, 



446, 451, 458, 506, 517, 526, 527, 

 530 



canned, 185 



dried, 184-186, 400, 411, 451, 458 



frozen, 185 



sirup, 185, 186 

 Organic phosphorus compounds, 26 

 Organs, 270, 444, 509. See also name of 



each 

 Oridin, 36 



hydrochloride, 36 

 Oryzanine, 29, 30, 49, 431, 490, 514 



a-acid of, 29, 49 



/3-acid of, 29, 49 



picrate, 29 

 "Oscodal," 384 

 Osteoblast, 165, 167, 295 

 Osteodentin, 163 

 Osteomalacia, 319, 320, 398, 428, 440, 



447, 462, 479, 527 



Otitis media, 503. See also Ear; Vita- 

 min A 

 suppurative, 455 



Ovaries, 70, 76, 289, 341-344 



Ovulation, 289, 336, 338. See also Vita- 

 min E ; Reproduction 



Ox brains, 28 

 tissue, 421 



Oxidases, 198 



Oxidation, 77, 78, 228-238, 303, 311, 347, 

 511 



Oxidation-reduction potential, 210, 212- 

 213 



Oxidizing agents, 46 



Oxycholesterylene, 312 



Oxygen, efifect of, upon vitamin A, 230- 

 238 



upon vitamin C, 213 



utilization and vitamin B, 77-79 

 Oxygenase in citrus fruits, 186 

 Oysters, 434, 457, 482, 528 

 Ozone, 230-231, 356, 531 



efifect upon vitamin A, 230-231 



Palm kernel meal, 394 

 kernel oil, 505 

 oil, 464 

 Pancreas, 53, 55, 70, 86, 280, 386, 489 

 Papaya, 94, 192, 193, 269, 462 

 />-oxy-nicotine acid, 23 

 Paralysis, 85, 104, 105, 123, 343, 344. 



See also Vitamin B 

 Parathyroid, 421, 440, 464, 470, 476 

 Parsley, 93 

 Parsnips, 269 



Pasteurization of milk, 150-153, 471, 494 

 Pasture-feeding, 322, 334 

 Patent flour, 302. See also Flour 

 Pathology, 152, 153. See also under 



each Vitamin deficiency, and as 



related to health 

 Pauly reaction, 35, 44, 46, 68 

 Peaches, 94, 189, 191, 269, 440 

 Peanut (arachis) oil, 270, 340 

 antirachitic potency of on irradiation, 



332 

 Peanuts, 95, 158, 269, 340, 378, 405, 434 



meal, 405 

 Pears, 94, 189, 192, 277, 442 

 Peas, 92, 95. 149, 203-206, 245, 251, 268, 



402, 405, 453, 463, 486 

 green, 206, 402, 486 

 sprouted, 405 

 Pecans, 94, 269, 491 

 Pellagra, 118-145, 162, 356, 371, 372, 



390, 393, 394, 397, 401, 402, 430, 



433, 439, 445, 447, 452, 453, 456, 



470, 485-487, 491, 492, 502, 511, 



514, 515, 519, 520, 524, 528 

 Pellagra-like condition, 519. See also 



Vitamin G 

 Pellagra-preventive (P-P) factor. See 



Vitamin G 

 Pelvis, 281 

 Pentane, 345, 348 

 Peppers, green, 93, 205, 206, 245-246, 



268 

 red, 268 

 Peptides, 58 

 Perchloric acid, 44 

 Period, length of experimental, in 



measurements of vitamin values. 



266, 267 

 Permanganate, 215 

 Peroxidase, 186, 218 

 Peroxidation, 530 



