SUBJECT INDEX 



Pteridine-6-carboxylic acid, 2-amino- 



4-hydroxy-, 471, 472, 479, 482. 

 Pteridine-7-carboxylic acid, 2-amino- 



4 : 6-dihydroxy-, 514. 



— , 4-hydroxy-, 514. 



— , 2 : 4-diamino-, 514, 517. 



— , 2 : 4-dihydroxy-, 514. 



Pteridine-7 (or 6)-carboxylic acid, 2 : 4- 



dihydroxy-6 (or 7)-hydroxy-, 514. 

 Pteridine-7-carboxylic acid, 4-hydroxy- 



2-mercapto-, 514. 

 Pteridine-6 : 7-dicarboxylic acid, 2 : 4- 



diamino-, 517. 

 Pteridyl-6-aldehyde, 528. 

 — , 2-aniino-4-hydroxy-, 475. 

 Pteroic acid, 464, 474, 481, 504, 509, 

 510, 516, 519, 520, 528. 



, 4-aiiiino-N^ "-methyl-, 523. 



Pteroylaspartic acid, 520, 521, 523, 527. 



, 4-amino-, 522, 523. 



Pteroyldiglutamic acid, 501, 503, 520, 



528. 

 Pteroyldiglutamylglutamic acid. See 



Pteroyltriglutamic acid. 

 Pteroylglutamic acid. See Folic acid. 



, 4-amino-. See Aminopterin. 



•, 9 : N^ "-dimethyl-, 522, 523. 



, — 9-methyl-, 523. 



, N^ "-methyl-, 522, 523. 



, Ni"-phenacyl-, 520. 



Pteroylheptaglutamic acid, 464, 472, 



481, 489, 498, 499, 503, 504, 509. 

 Pteroylhexaglutamylglutamic acid. See 



Pteroylheptaglutamic acid. 

 Pteroyltriglutamic acid, 464, 472, 476, 



481, 485, 501, 503, 504, 509, 510, 515, 



516, 520, 523, 528. 

 Ptinus tectus, 115, 205, 287, 341, 389, 



441, 512, 560, 578, 597- 

 Purine, 2 : 6-diamino-, 523. 

 Purines as growth factors for micro- 

 organisms, 622. 

 Pyracin. 304, 336. 337, 344, 459, 485. 



488, 512. 

 Pyrazine, 2 -amino-5 -methyl-, 472. 

 Pyrazine-dicarboxylic acid, 288, 289, 



291. 

 — -monocarboxylic acid, 279, 288, 289, 



291. 

 Pyridine, 288. 



3-acetyl-, 293. 



4-alkoxymethyl - 3 hydroxy - 5 - 

 hydroxymethyl-2-methyl-, 302, 



304. 311- 

 3-amino-, 225, 227, 288, 289. 

 3 - amino - 5 - aminomethyl - 4 - 

 ethoxymethyl-2 -ethyl-, 346. 



• - 4 - hydroxymethyl-, 343. 



4 - methoxymethyl - 2 - me- 

 thyl-, 343. ^ 



Pyridine, 4 - aminomethyl - 3 - hydroxy - 

 5 - hydroxymethyl-2 -methyl-. See 

 Pyridoxamine. 

 — , 5-aminomethyl - 3 - hydroxy - 4 -hy- 

 droxymethyl-2 -methyl-, 300. 

 — , 4 : 5-bis-(aminomethyl)-3-hydroxy- 



2-methyl-, 306. 

 — , 4 : 5-bis-(halomethyl)-3-hydroxy-2- 



methyl-, 302, 304. 

 — , 3-cyano-, 216, 218, 242, 290. 

 — , 4 : 5-epoxydimethyl-3-hydroxy-2- 



methyl-, 304, 311. 

 — , 3-ethyl-, 215. 



— , 2 - ethyl - 3 - hydroxy - 4 : 5-bis- (hy- 

 droxymethyl)-, 343. 

 — , 4 - formyl - 3 - hydroxy - 5-hydroxy- 

 methyl-2-methyl-. SeePyridoxal. 

 — , 5 - formyl - 3 - hydroxy - 4 - hydroxy- 



methyl-2-methyl-, 301. 

 — , 3 - hydroxy - 2 : 5 - bis - (hydroxy- 

 methyl) -4-methyl-, 343. 



— , 5-hydroxymethyl-2 : 4-dimethyl-. 



See Desoxypyridoxine. 



— , -4-methoxymethyl-2 -methyl. 



See Pyridoxine, 4-methyl. 



— , 4 -hydroxymethyl - 2 - methyl-, 



346. 



— , 2 - methyl -4:5- methylenedi - 



oxymethyl-, 343. 



— , 2:4: 5-trimethyl-, 343, 346. 



— , 2 -methyl-, 290, 



• — , 4-methyl-, 290. 



— , 3-phenyl-, 215. 



— , 2-(thiazole-5'-carboxylamido)-, 292, 



Pyridine derivatives, enzymic oxidation 



of, 196. 

 Pyridine-3-acetic acid, 255. 

 Pyridine -3 -carboxylic acid, 6-amino-, 



561. 

 Pyridine-4-carboxylic acid, 3-hydroxy- 

 5-hydroxymethyl-2-methyl-. See 4- 

 Pyridoxic acid. 

 Pyridine-3 : 5-dicarboxylic acid, 289. 



, 2 : 4-dimethyl-, 290. 



, 2 : 6-dimethyl-, 289. 



, 2:4: 6-trimethyl-, 290. 



4 : 5-dicarboxylic acid, 3-hydroxy- 



2-methyl-, 306. 

 , 3-methoxy-2-methyl-, 300, 302, 



304- 



3-sulphonamide, 291, 292. 



, i-ethyl-i : 2-dihydro-, 292. 



, methiodide, 292. 



PyTidine-3-sulphonic acid, 216, 242, 

 290, 291, 292, 293. 



— ~~ diethylamide, 291. 



Pyridinium bromide hydrobromide, i- 

 (4' - amino - 2' - methylpyrimidyl - 5' - 

 methyl) -5-hydroxy- 3 : 4 -bis- (hydroxy- 

 methyl) - 6 - methyl-, 119. 



G81 



