THE VITAMIN B COMPLEX 



Pigs, effect of vitamin deficiency in, 52, 

 169, 238, 320, 368, 426, 490, 491, 

 573. 591, 609. 



— , vitamin requirements of, 188, 417. 



Pimelic acid, 410, 418, 446, 449. 



Pineapple, vitamin content of, 43, 164. 



Pine kernels, vitamin content of, 43. 



Pinitol, 579. 



Pityrosporum ovale, no. 



Placenta, ribofiavine in, 181. 



Plant hormone, aneurine as, 113, 114, 

 441. 



, biotin as, 441. 



Plants, effect of vitamins on, 113-115, 

 205, 341, 389, 441, 512, 559, 578. 



— , vitamin content of, 43, 114, 164, 

 165, 205, 316, 341, 363, 389, 441, 

 512, 550, 570, 571, 578, 587, 588. 



Plasma, vitamins in, 69, 373. 



Plasmodium gallinaceum infection, effect 

 of vitamins on, 399, 510. 



— lophurae infection, effect of vitamins 



on, 171, 239, 346, 429. 



Plums, vitamin content of, 43, 164, 233, 

 588. 



Pneumococci, 204, 453, 547, 596. 



Pneumococcus infection, effect of vita- 

 mins on, 51, 171, 369. 



Polarographic estimation of vitamins, 

 41, 162, 225, 311. 



Poliomyelitis virus, effect of vitamins 

 on infection with, 51, 321, 369, 429, 

 492. 574- 



Pollen, vitamin content of, 44, 167, 235, 



317. 363. 424. 441. 513- 

 Polyneuritis in birds, 10, 11, 28, 46, 47. 



— man, 57. 



— rats, 29, 48. 

 Polyporus abietinus, 109. 



— adustus, 109. 



— Spraguei, 109. 

 Polytoma caudatum, 112. 



— ocellatum, 112. 



Polytomella caeca, 112, 118, 119, 126. 

 Ponies, pantothenic acid requirements 



of. 378- 

 Pork, vitamin content of, 44, 166, 234, 



316. 363. 537. 588. 

 Porphyrin, secretion of, 366. 

 Porphyrin-containing enzymes, 528. 

 Potatoes, vitamin content of, 35, 44, 



164, 233, 363, 588. 

 PP factor, 132, 211. 

 Prawns, vitamin content of, 233. 

 Pregnancy, polyneuritis of, 57. 

 — , ribofiavine excretion in, 181. 

 Procaine, 560. 

 Processing of foodstuffs, effect on 



vitamin content, 44, 165, 235. 

 Prognanil, 209. 



Prontosil rubrum, 545. 

 Propionaldehyde, 2 : 3-dibromo-, 474. 

 — , halogenated derivatives of, 475. 

 Propionibacteria, 97, 98, 439. 

 Propionibacterhtm pentosaceum, 360, 



380, 381, 382, 397. 

 Propionic acid, metabolism of, 627. 



, j3 - 4 - aminophenyl - j3 - pantoyl - 



amino-, 401. 

 Propyl alcohol, aceto-, and derivatives, 



16, 17, 18, 19, 20, 

 Propylamine, 3 '-hydroxy -N-pantoyl-, 



356. 

 — , N-pantoyl-, 400. 

 Protective factor X, 404. 

 Protein metabolism, effect of pyridoxine 



deficiency on, 318, 319, 330. 

 Proteus HX 19, 228. 



— morganii, 282, 360, 361, 380, 383, 



391. 392, 395. 



— vulgaris, in, 204, 227, 228, 229, 264, 



282, 283, 284, 290, 291, 292, 294, 



340, 380, 399, 439, 511. 

 " Protogen", 622. 

 Protozoa, vitamin requirements of, 285, 



340- 

 Prunes, vitamin content of, 43, 363. 

 " Pseudo-j3-biotin ", 417. 

 Pseudomonas aeruginosa, 380, 556. 



— fluorescens, in, 204, 283, 340, 380, 



439, 511. 



— riboflavina, 209. 

 Pseudo-pellagrous conditions, 244. 

 " Pseudo-pyridoxine ", 312. 

 Psittacosis, 558. 



Psoriasis, 575. 



Pteridine, 2 - amino - 6 - formyl - 4 - hy- 

 droxy-, 479. 



2-amino-4-hydroxy-, 471, 479. 



6 : 7-dimethyl-, 518. 



— -6 : 7-diphenyl-, 518. 

 6 (or 7)-hydroxy-7 (or 6)- 



methyl-, 514, 518. 



6-hydroxymethyl-, 475. 



7-hydroxy methyl-, 475. 



6-methyl-, 472, 475. 



7-methyl-, 522, 614. 



6-tetrahydroxybutyl-, 475. 



2 - amino - 6 - hydroxy - 8 : 9 - di - 



methyl-, 126. 

 2 : 4-diamino-, 517. 



— -6 : 7-dimethyl-, 517. 



6 : 7-diphenyl-, 517. 



2 : 6-dihydroxy-8 : 9-dimethyl-, 126. 

 2 : 4-dihydroxy-6 (or 7)-hydroxy-7 



(or 6) -methyl-, 514. 

 Pteridine-6-acetic acid, 2-amino-4- 



hydroxy-, 472. 

 Pteridine-^ -carboxylic acid, 2-amino- 



4 : 7-dihydroxy-, 471. 



680 



