930 



I'ilDeridocarbinylbeiizimidazole 



carboxylic acid [I933J ... G97 



Piperidopropylene glycol [1931] 682 



Piperiluaphtriylo-,azo"iie [1G30] .. 65-1 



I'ilieriltolylosazoiie [1030] ... 654 



Piperonal 624,673 



Piperonyleneuielliyl ennyl ketone 633 



Piperonylic acid '[1330J ... 608 



Piperonylideiit'desoxybenzoiii ... 674 



Piperoiiylnaplidiaflavanone [1911] 672 



Piperonyloiii [1912] 673 



Pivalio acid [1310] 583 



Plant constituents [0r)2r»] ... 770 



respiration ... ... ... 873 



Platimini [0610] 525 



atomic wei<?lit [7105] ... 820 



estimation [6200] 737 



organic compounds [2000] 709 



Poisons, detection [6522] ... 770 



Polarisation, rotatory [7315] ... 857 



Polymorphism [7130] 827 



Polypeptides [4000] 715 



Potassium com]xiunds, estimation 739 



estimation [6200] 735 



Pottery [6595] 791 



Pratensol [1250] 569 



Pratol [1250] 569 



Preservatives in food [6515] ... 750 



Pressure of gases [7160] ... 831 



Propane [1110] 544 



Propenylsuccinic acid [1320]... 596 



Propiofic acid [1320] 594 



Propionic acid [1310] 582 



Propiouylcyclohe.xanone [1540] 638 



Propionylcyclopentanone [1540] 637 



Propionylbeptoic acid [1310] ... 590 



Propiiuiylhexoic acid [1310]'... 589 



Propionylvaleric acid [1310] ... 589 



Propylamine [1610J 641 



Propylbenzene ]I130] 548 



Propylbenzocvcloheptadienone ... 637 



Propylene [1120] 545 



Piopylglyciue anhydride [1932] 689 



Propylisopropylcyanoacetic aciil 591 



Propylmethoxycarbiuylthiourea 585 



Propyloxanthranol ['[530] ... 632 



Propylquinazoline [1932] ... 691 



Propyltolyl methyl ether [1275] 571 



Proteins 715, 765 



colloidal [7125] 827 



detection [6150] 732 



estimation [6350] ... 743 



in urine, estimation [6520] 769 



Proteoclasts [8014] 871 



Pseudocumene [1130] ... . 548 



Pseudocumylbutyramide |1330] 601 



Pseudocumylpropionamide [1330] 601 



Pyrauthrene [1130] 551 



Pyranthrone [1540] 639 



Pyrazoisocoumarazone [1940]... 703 



Pvrene [1130] 550 



Pyridine [1931] 679 



carboxviic acid [1931] ... 682 



dicarboxylic acid [ 193 1 ]. . . ii^2 



ferric acetate [20tX)] ... 707 



Pyrocatechol [1230] 563 



methylene ether [12^5] ... 572 



sulphonic acid [1330] ... 610 



Pyrocinchonic acid [1320] ... 596 



Pvrogallol dimethyl ether [1275] 573 



Pyrotartaric acid ' [1310] ... 591 



Pyrrole dicarl)oxylic aldehyde ... 682 

 Pvrrolidonvlglvcine ... 685, 716 



PVrrvl ethvlketone [1931] ... 6S2 



P'vrrVl propyl ketone [1931] ... 682 



Pyruvic acid [1310] 589 



Quercitol phosphate [1265] ... 570 



Vjuercitrin [1850] 666 



Quindoline [1932] 687 



Quinine [3010] 713 



Quinol Ijistriphenylraethyl ether 573 



— — diisobutyl ether [1275] ... 573 



estimation [6350] 741 



Quinoline [1931] 680 



carboxylic acid [1931] ... 683 



Quinone [1530] 631 



estimation [6350] 742 



Radiation [7305] 855 



Radioaitive substances [0100] ... 492 



Radioactivity [7035] 855 



Radium [0()20] 526 



estimation [6200] ... 736 



Raffinose [1830] 664 



estimation [6350\.. ... 743 



Rare earths [0245] ' 502 



Rate of change [7085] 815 



Reduction 541. 724,818 



Refraction of light [7310] ... 856 



Rennet 752,872 



Reports [0020] 486 



Resin acids [1350] 620 



Resins ... ... ... 677, 773 



Resorcinol [1230] 563 



Resorcylic acid [1330] 608 



Resorufin [1940] 703 



Retene [1130] 550 



Retendlethvlindandione [1540 .. 638 



Rhwleohex"oriic acid [1310] '... 593 



Rhodeohexose [1810] 663 



Rhodium [0640] 528 



atomic weight ... ... 820 



Ribose [1810] 662 



Rice [6515] 750 



Ricinoleic acid [1320] 595 



Rotatory polarisation [7315] ... 857 



Rubber' 774,800 



Rubidium [0630] 527 



Ruthenium [0650] 528 



Sabinicacid [1310] 588 



Saccharinic acid [1310] ... 593 



