566 



SUBJECT INDEX 



Persimmon, 193 



Persistence of vitamin A in plant tis- 

 sues, 252 

 Peters' antineuritic concentrate, 131 

 Petroleum, 310 

 ether, 305, 348, 349 

 as solvent for vitamin D, 305 

 pH, 59, 63, 64, 66, 69, 106, 107, 109, 

 124, 126-128, 136, 148, 149, 181, 

 183, 188, 211-213, 216, 233-234, 

 326, 444, 446, 483, 485, 491, 495, 

 498, 501, 530 

 effect on vitamin C, 148, 149, 181, 



183, 188 

 influence of, in adsorption of vitamin 



B, 59, 63, 64, 66, 69, 109, 491 

 influence of, in adsorption of vitamin 



G, 124, 127, 136 

 influence of, on precipitation of vita- 

 min C by lead, 216; of vitamin 

 G, by lead, 126 

 influence of, upon solubility of vita- 

 min B, 59, 63-66 

 of alimentary tract, 326, 485, 495, 501, 

 530 

 in relation to rickets, 501 

 of feces of rachitic children, 485 

 relation of, to stability of vitamin A, 



233-234 

 relation of, to stability of vitamin B, 



106, 107 

 relation of, to stability of vitamin C, 



211-213, 444 

 relation of, to stability of vitamin G, 



128 

 See also Hydrogen-ion activities 

 Phagocytosis, 524 



Pharmaceutical Society of Great Brit- 

 ain, 317 

 Pharmaceuticals, 240. See also under 



name of each 

 Pharmacology of the vitamins, 519. See 

 also description of each Vita- 

 min 

 Pharyngitis, 140 

 Phaseolus, 24 

 radiatus, 15 

 Phenol indophenol, 216, 218 

 Phenols, 220, 430 

 4-Phenylisocytosine, 2>7 

 Philippine cereals, fruits and vegetables, 

 353, 491 

 Scouts, eradication of beriberi from, 

 26 

 Phosphate, 415, 435, 439, 491 

 Phosphatid, 495 

 Phosphoric acid, 62, 176 

 Phosphorus, 25, 216, 293, 295, 296, 298, 

 322, 334, 349, 359, 364, 379, 384, 

 390, 394, 407, 409, 412, 414, 415, 

 417, 419, 428, 430, 433, 441, 442, 

 450, 451, 459, 463, 465-467, 472, 



Phosphorus {continued) 



A77, 479, 486, 492, 495, 501, 503, 

 507, 516, 517, 522, 524, 530, 533 

 metabolism, 293, 295, 296, 298, 322, 

 334, 359, 364, 379, 384, 390, 394, 

 409, 412, 414, 415, 417, 419, 428, 

 430, 433, 441, 451, 459, 463, 465- 

 467, 472, 477, 479, 486, 492, 495, 

 501, 516, 522 



Phosphorus pentachloride, 234 



Phosphorus pentoxide, 239 



Phosphotungstic acid. See Vitamin B, 

 concentration of 



Photoactivity, 443 



Phthalic anhydride, 237 



Phytol, 237, 433 



Phytosterol(s), 305, 306, 414, 419 



Pickles, 205, 516 



Picric acid, 38. See also Vitamin B, 

 concentration of 



Picrolonic acid, 43, 107. See also Vita- 

 min B, concentration of 



Pidan, 88 



Pig. 286, 365, 388, 403, 430, 471, 480 

 kidney, 56, 70 



Pigeons, 77, 114, 115, 118, 125, 379, 389, 

 405-407, 422, 425, 444. 469, 480, 

 495, 496, 511, 523, 526, 530 



Pigmentation, 227, 272, 508. See also 

 Carotene. 



Pigments, 227, 272, 508. See also 

 Carotene 



Pimiento, 206 



Pineapple, 94, 192, 193, 269, 462 

 juice, 192 



Piperidine, 36 



Pitchard oil, 366 



Pituitary gland, 70, 76 



Pituitrin, 41 



Placental function, 336 



Plankton, 252, 331, 360 



Plantain, 269, Z72,, 482 



Plants, 251, 375, 454, 473, 482, 491, 493 

 green, 493 



tissues, 375, 473, 482 

 vS"^^ also under each Vitamin, occur- 

 rence or distribution, in nature 

 or in foods 



Platelets, 281 



Platinic chloride, 43. See also Vita- 

 min B, concentration of 



Platinum, colloidal, 303 



Plums, 189 



Poi, 196 



Polenta, 137 



Polished rice, 47, 52, 55, 56, 65, 70, 71, 

 148, 151, 436, 470 



Polishings, rice, 14, 15 



Pollack liver oil, 423 



Polyneuritis, 15, 16, 24, 25, 27, 31, 39, 

 72, 7Z, 78, 85, 98, 104-105, 115- 

 117, 121, 365, 384, 388, 399, 405, 



