996 



Potassium nitrate [0420] ... 368 



Potassium stanuite [0720] ... 391 



Potassium sulphate [0420] ... 309 



Praseodymium [0600] 382 



Pressure of gases [7150] . . 894 



Primulitol [1210] 445 



Propane sulphonic acid [1310] 513 



Propenylbenzene [1130] ... 422 



Propenylmesitvlene [1130] ... 423 



Propenylphenol [1230] 458 



Proijenylpyrocatecliol [1230] ... 465 



Propionic acid [1310] ... ... 488 



Propionic aldehyde [1410] ... 585 

 Propionic aldehyde disulphonic 



acid [1310] 531 



Propionic anilide [1630] ... 634 



Propionvlacetoacetic acid [1310] 523 



Propionyl chloride [1310] ... 488 



Propionyl cyanide [1310] ... 511 



Propionyl-mesitylene [1530] ... 605 



Propionylpropionic acid [1310] 511 



Propionylpynivic acid [1310]... 522 



Propyl alcohol [1210] 440 



Proijylamine [1610] 628 



J*ropylbenzene [1130] ... ... 420 



Propyldicyanoglutaconimide 



[1660] 671 



Propylene [1120] 413 



Propylene chlorhydrin [1210]... 440 



Propylenediamine [1610] ... 629 



Propylmalonamic acid [1310]... 521 



Propylmalonamide [1310] ... 521 

 Propvlphenyldicyanoglutaconi- 



mide [16G0] ... _ ' 671 



Propylphenvldihvdropicolone car- 



boxylicacid '[1930] 740 



T'ropylpyrazolone [1930] ... 747 



Propylresorcinoldihydride [1540] 623 



Proteids 783,813,829 



Proteoclastic enzymes [8010]... 942 



Protocatechuic acid [1330] ... 558 



Protolichesteric acid [1350] ... 581 



Protopine [SOlO] 781 



Pseudocumenol [1230] 455 



Paeudocumenolcarhinol [1230]... 465 



Pseudocumidine [1630] ... 645 



Pseudolutidostyril [1930] ... 732 



Ptomatine [.3020] 782 



Pulegene [1140] 432 



Pulegenic acid [1340] 573 



Pulegenone [1540] 618 



Pulegolacetic acid [1340] ... 575 



Palenene [1140] 432 



Pulenone [1540] 617 



Purpurogallin [5010] 789 



Pyrazole [1930] 743 



Pyrazole carboxvlic acid [1930] 747 



Pyridine [1930] 724,814 



Pyridine carboxvlic acid [19301... 731 



Pyridinocholine" chloride [1930] 732 



Pyridone [1930] 730 



Pyridoniuni iodide methyl acetate 



[1930] 734 



Pyridylacrvlic acid [1930] ... 733 



Pyridylanisidine [1930] 730 



Pyridylglycocoll carboxvlic acitl 



[1930] 749 



Pyridylisopropyl alcohol [19.30] 734 



Pyridvlplienylthiourea [1930]... 726 



Pyridylphenylurea [1930] ... 731 



Pyridylpropionic acid [1930] ... 733 



Pyridyl styrjd ketone [1930] ... 738 



Pyridylthiocarbamic acid [1930] 755 



Pyrimidine [1930] 743 



Pj'rindandion carboxylic acid 



[1930] 734 



Pyrocatechin [12.30] 462 



Pyrocatechol [1230] 462 



Pyrogallol [1230] 468 



Pyrogallolaldehvdeaniline [1230] 470 



Pyromucic acid' [1910] 707 



Pyi'omucic acid azide [1910] ... 705 



Pyromucic acid hydra zide [1910] 704 



Pyromucic acid hydrazine [1910] 711 



Pyromucylcarbamic esters [1910] 708 



Pyrotartaric acid [1310] ... 519 



Pyrotartaric imide [1660] ... 672 



Pyrotartramic acid [1310] ... 519 



Pyrousnetic acid [1350] ... 582 



Pyrousnic acid [1350] 5S2 



Pyrrodiazole [1930] ... ... 742 



Pyrrole diacetic dicarboxylic acid 



[1930] 736 



Pyrrolidine carboxylic acid [1930] 731 



Pyruvic acid [1310] 509 



Pyruvylpyruvic acid [1310] ... 527 



Quercetagetin [5010] 788 



Quercetin [5020] 795 



Quinine [3010] 781 



Quinol [1230] 463 



Quinoline [1930] 727 



Quinoline carboxylic aldehyde 



■[1930] 7.35 



Quinolyli^ropanediol [1930] ... 737 



Quinone [1530] ... _ ... ^ ... 608 



Quinone sidphonic acid [1330]... 563 



Quinophthalone [1930] 741 



T.'adioactive substances [0100]... 338 



Radioactive thorium [0770] ... 393 



Radio-activity [7300] 926 



Radium 383,890 



Radium bromide [0620] ... 383 



Raffinose [6300] 829 



Rare earths [0100] 338 



Reduction 40Ci, 801 



Refraction of light [7300] ... 927 



Rerniin [8010] 943 



Reports [0020] 325 



Resins 099,861 



Resorcinol [1230] 462 



