THE VITAMIN B COMPLEX 



— Bj. See Pyridoxine 



— Bjo, 460, 486, 491, 540, 613, 614. 



— Bji, 460, 486, 491, 540, 613, 614. 

 Vitamin Bjj 



chemical constitution of, 533. 



discovery of, 530-532, 



effect in animals, 539-540. 



— man, 538-539- 



estimation of, 534-536. 



excretion of, 539-544. 



in nutrition of micro-organisms, 543- 



544- 

 intestinal synthesis of, 539, 544. 

 isolation of, 532. 

 occurrence of, 537-538. 

 properties of, 533. 

 relation to folic acid, 499-500, 526, 



540- 

 Vitamin B^ao. 531. 



— Bijft, 531, 538. 



— B13, 614. 



— Bi4, 614. 



— Be, 458, 459, 469, 477. 



— conjugase, 460, 462, 464, 479, 480, 



481, 483. 504. 509, 511. 



— conjugate, 459, 464, 469, 



479, 481, 491- 



— Bt, 617. 



— B,, 365. 



— C, 103. 



— E. 364. 



— G, 10, 132. 



— H, 132, 404, 406. 



— K. 487, 552. 



— L. 615. 



— M, 460, 491. 



Vitamins, characteristics of, 628-629. 

 — , inadequacy for animals of known, 



608-610. 

 Vongerichten reaction, 218. 



470. 478. 



Walnuts, vitamin content of, 43, 363. 

 Watercress, vitamin content of, 44. 

 Wernicke's syndrome, 58, 246, 

 Wlieat and wheat products, vitamin 



content of, 43, 45, 164, 232, 316, 363, 



537. 550, 571. 587. 588. 

 Woods-Fildes hypothesis, 128, 546, 562. 



Xanthine, 294, 520, 562. 



— oxidase, 194, 195, 197, 528, 615, 

 Xanthopterine, 460-462, 470, 476, 478, 



484. 491, 508, 509, 510, 512, 513. 



522, 614. 

 — , dihydro-, 476, 522. 

 Xanthopterine oxidase, 528. 

 Xanthopterine-carboxylic acid, 126, 522. 

 Xanthurenic acid, 319, 330, 331, 336, 

 342. 345. 346. 



Yeast, vitamin content of, 44, 166, 234, 

 316, 363, 423, 483, 537, 546, 548, 551, 



570. 571- 

 Yeasts, synthesis of aneurine by, 106. 

 — , — cocarboxylase by, 107. 

 — , — riboflavine by, 148. 

 — , vitamin requirements of, 105, 203, 

 281, 338, 386, 404, 405, 438, 546, 



548. 557. 577- 

 Yellow enzyme, 134, 191. 



Zeolites as adsorbents, 11. 



Zoopherin, 619. 



Zygosaccharomyces barken, 386, 446. 



— felsineus, 386. 



— japonicus, 106, 386, 577. 



— lacHs, 281. 



— mandshuricus, 106, 386. 



— marxianus, 281, 386. 



— nadsoni, 386, 



— pastori, 386. 



— priorianus, 106, 386, 577. 



— variabilis, 386. 



688 



