《RECENT PROGRESS IN THE CHEMISTRY OF NATURAL AND SYNTHETIC COLOURING MATTERS AND RELATED FIELDS》

Synthesis in the Brazilin Group By SIR ROBERT ROBINSON1

Ommochromes By ADOLF BUTENANDT and WOLFROM SOHAFER13

Bisdehydrocanthaxanthin By H.FAIGLE and P.KARRER35

Recent Developments in the Carotenoid Field By O.ISLER,R.RUEGG and P.SCHUDEL39

Azulenes from Natural Precursors By SUKH DEV59

Naturally Occurring Phloroacylophenones By WOFGANG REIDL77

Some Naturally Occurring Black Pigments By R.H.THOMSON99

Hooker’s Researches on Lapachol By LOUIS F.FIESER115

Some Natural Anthraquinone Colouring Matters By B.S.JOSHI127

Constituents of the Coprosma Genus By LINDSAY H.BRIGGS137

Bianthraquinones and Related Compounds Produced By Moulds By SHOJI SHIBATA147

Studies in the Chemistry of Flavonoid Epoxides By E.M.PHLLBIN and T.S.WHEELER167

Recent Advances in the Chemistry of Biflavones By N.KAWANO177

The Biflavonyl Pigments By Wilson Baker187

Mechanism of the Degradation of Rutin By a Fungus By SHIZUO HATTORI207

Some Recent Developments in the Chemistry of Leucoantho-oyanidins By J.W.CLARK-LEWIS211

Anthocyanidin Precursors By Karl Freudenberg221

A New Synthesis of 5-Hydroxycoumarin By TH.NOGRADI,.J.SWOBODA and F.WESSELY227

Naturally Occurring Phenylcoumarins By N.R.KRISHNASWAMY and T.R.SESHADRI235

Orientin, a Component of Oxalis cernua Thunb By MASAMI SHIMOKORIYAMA255

Researches on Anthoxanthins and Phenylcoumarins By G.BARGELLINI and G.B.MARINI-BETTOLO261

Natural Isoflavones and their Glycosides By LORAND FARKAS279

Simple Pigment Structures Containing Condensed Isoprenoid Units By M.L.WOLFROM and F.KOMITSKY,JR287

The Biogenesis of Isoflavones and Related Compounds By HANS GRISEBACH301

Recent Work on the Isolation, Analysis and Phytochemistry of Flavones and Isoflavones By L.HORHAMMER and H.WAGNER315

A Contribution to the Chemistry of Mangiferin By B.J.HAWTHORNE,N.F.JANES,F.E.KING and J.W.W.MORGAN331

Chemistry of Polyene Antibiotics By D.S.Bhate341

The Constitution of Clerodin By D.H.R.BARTON, H.T.CHEUNG,A.D.CROSS, L.M.JACKMAN and M.MARTIN-SMITH347

Some Recent Advances in Diterpene Chemistry By V.P.ARYA and H.ERDTMAN359

Alkaloids of the Indian Rutaceae By ARTHUR RUEGGER389

The Structure of Chaksine By GURBAKHSH SINGH, G.V.NAIR,K.P.AGARWAL and S.S.SAKSENA401

Biochemical Approaches to the Lignin Problem By F.F.NORD,WALTER J.SCHUBERT and ARAL OLCAY413

Correlations between Paper Chromatographio Behaviour and Substantivity of Direct Dyes By O.A.STAMM,ROSWTTHA WIRZ and HCH.ZOLLINGER425

The Study of some Reactions in Diazocompounds Chemistry By the Method of Integral Spectrokinetics By B.A.PORAI-KOSHITS and V.I.ZAIONTS433

Mechanism of the Isomerization of Azoxy Compounds By M.M.SHEMYAKIN and V.I.MAIMIND441

On the Abnormal Mobility of Halogen in Complex Compounds of of Certain Azo Dyes with Metals By B.I.STEPANOV451

Dyestuffs Containing Vinylsulphone Groups（“VS-Dyestuffs”） By JOHANNES HEYNA473

Cobalt Chelates of Formazans By HANS RUDOLF VON TOBEL and ROBERT WIZINGER495

Contribution to Chemistry of Formazans By HENRI WAHL and MARIE-THERESE LE BRIS507

Chemical Constitution and Fastness of Disperse Dyes By S.V.SUNTHANKAR517

Quinonoid Dyes from 2,3-Dichloro-1,4-naphthoquinone and Chloranil By B.D.Tilak537

Some Problems of Anthraquinone Chemistry By N.S.DOKUNIKHIN555

Monomers, Dimers and Tetramers in Solutions of Phthalocyanine Sulphonates By E.SCHNABEL, H.NOTHER and H.KUHN561

The Search for Longer Conjugated Chains in Cyanine Dyes By L.G.S.BROOKER573

The Chemistry and Biological Properties of the Rimino-com-pounds By VINCENT C.BARRY, JAMES G.BELTON and DERMOT TWOMEY589

Fluorescent Brightening Agents of the Triazole Series. By H.GOLD, S.PETERSEN and O.BAYER605

Optical Whitening Agents By D.A.W.ADAMS615

The Desulphurization Reaction By G.M.BADGER629

An Analysis of Structure-Activity Relationships in Newly Investigated Carcinogenic Hydrocarbons and Related Hetero-cycles By N.P.BUU-HOI641

SUBJECT INDEX651