SESSION 10B．MINERAL METABOLISM-Ⅰ 1
The Transport of Bivalent Cations into the Yeast Cell in relation to Potassium and Phosphate Uptake＆by A．Rothstein． 1
Radioactive Isotopes in the Study of Synthesis Processes in Yeast Organisms＆by R．D．Galtsova and N．A．Pomoshnikova． 12
Sulphur Metabolism in Fungi＆by June E．Robson． 29
Formation de sulfite,d＇acide cysteique et de taurine a partir de sulfate par l＇oeuf embryonne＆par F．Chapeville et P．Fromageot． 44
L＇existence de deux formes de phosphore dans le plasma＆par J．Govaerts et R．Machiroux． 52
The Turnover-Rates of Labile Phosphate Compounds in Skeletal and Heart Muscle during Activity and Rest,investigated with the Use of Radiophosphorus and Paper Chromatography＆by A．Fleckenstein and J．Janke． 60
The Use of Radiophosphorus in the Study of Phosphorus Metabolism of Red Blood Cells＆by E．Gerlach． 74
SESSION 11B．MINERAL METABOLISM-Ⅱ 90
Studies on the Mechanism of the Retinal Photoreception by the use of Phosphorus-32＆by I．Hongo,T．Hara,Y．Sekoguti,R．Hara,M．Kato and I．Oki． 90
The Interpretation of Radiosodium Tissue Clearance Measurements as Applied to Peripheral Circulation Studies＆by W．Gemmell,J．J．Haxhe and N．Veall． 100
Emploi du potassium 42 pour l＇etude du fonctionnement renal＆par F．Morel et M．Guinnebault． 108
Etude des voies generales du metabolisme calcique chez l＇homme＆par G．Milhaud et J．P．Aubert． 120
The Delayed Redistribution of Radiocalcium in the Skeleton＆by P．Lacroix and R．Ponlot． 125
Differential Removal of Calcium-40 and Calcium-45 from Bone as Influenced by the Parathyroids and by Citric Acid＆by R．V．Talmage and J．R．Elliott． 135
SESSION 12B．FISSION PRODUCTS METABOLISM IN SOILS．PLANTS AND MAMMALS 150
Behaviour of Tracer Amounts of Strontium,Caesium,Ruthenium and Zirconium in Soils and Plants according to the Data of Investigations with Radioactive Isotopes of these Elements＆by V．M．Klechkovsky and I．V．Guliakin． 150
Discrimination between Strontium and Calcium in Plants and Soils＆by R．P．Martin,P．Newbould and R．Scott Russell． 173
Strontium-Calcium Metabolism in Man and Animals as Studied by Radioisotope Methods＆by C．L．Comar and R．H．Wasserman． 191
Experiments on the Metabolism of Certain Fission Products in Dairy Cows＆by Helen M．Squire,L．J．Middleion,B．F．Sansom and C．R．Coid． 207
Retention and Toricity of Radiostrontium in Monkeys＆by A．H．Ward． 221
Skeletal Metabolism in Humans Studied with Body Surface Counting of Strontium-85 and Calcium-47＆by G．C．H．Bauer． 232
SESSION 15B．NUTRIENT ASSIMILATION IN PLANTS 247
Some Recent Researches on the Use of Radioisotopes for Fertiliser Evaluation．The Uptake and Utilisation of Carbon via Plant Root from Carbon-14 labelled Urea and the Behaviour of Phosphorus-32 in Various Compound Fertilicers＆by S．Mitsui,K．Tensho and K．Kurihara． 247
Acquisitions recentes en chimie agricole par l＇usage du phosphore-32 et du calcium-45＆par A．Van den Hende et R．de Loose． 259
The Effect of Temperature on the Mineral Nutrition of Plants＆by Z．I．Zhurbitxky and D．V．Shtrausberg． 270
The Effect of Transpiration on the Adsorption of Inorganic Ions by Intact Plants＆by R．Scott Russell and V．M．Shorrocks． 286
Leaching of Nutrients from Plant Foliage as Determined by Radioisotopes＆by H．B．Tukey,S．H．Wittwer and H．B．Tukey,Jr． 304
Application of Radioactive Isotopes in the Study of Plant Fertilization＆by I．M．Polyakov,A．N．Dmitrieva and A．F．Zdrilko． 323
SESSION 16B．TRANSLOCATION IN PLANTS 340
Translocation Studies in Phloem with the Simultaneous Use of Tritium-Labelled Water,Carbon-14,Phosphorus-32 and Microautoradiograms＆by O．Biddulph,S．F．Biddulph and R．Cory． 340
The Circulatory System of the Sugarcane Plant＆by G．O．Burr,C．E．Harts,T．Tanimoto,D．Takahashi and H．W．Brodie． 351
Exchange and Circulation of Labelled Ions in Young Intact Plants＆by R．J．Helder． 369
Contribution à l＇etude de la nutrition minerale des arbrcs fruitiers au moyen d＇isotopes radioactifs＆par C．Corin,A．Lecrenier,R．Kirchman,O．Liard et M．A．Picard． 382
Measurement of Ionic Flures in Red Beet Tissue using Radioisotopes＆by G．E．Briggs,A．B．Hope and M．G．Pitman． 391
Transport of Sucrose in Stem Sections＆by D．de Zeeuw． 401
SESSION 17B．PHOTOSYNTHESIS 410
Introduction 410
Various Ways of Transformation of Carbon Assimilated by Plants in the Process of Photosynthesis＆by A．A．Nichiporovich,T．F．Andreyeva,N．P．Voskresenskaya,L．A．Nergovorova and Y．I．Novitzkiy． 411
Effect of some Poisons upon the Mechanism of Photosynthesis as Studied by the Technique of＇Pre-Illumination＇using C14 as a Tracer＆by H．Tamiya,S．Miyachi,T．Hirokawa and T．Katoh． 432
Investigations on Light-Depending Phosphorylation in Plants by Means of Phosphorus-32＆by W．Simonis and M．Ehrenberg． 449
Sur la distribution de l＇anhydride carbonique marque flxe par photosynthese et par β-carboxylation dans les feuilles de Bryophyllum＆par Marie L．Champigny,G．Jolchine et A．Moyse． 458
On the Renewal of Chlorophyll and Protein in Plants＆by T．N．Godnev,F．V．Turchin and A．A．Shlyk． 471
Interrelation of Chlorophyll Components and Carotinoids in Biosynthesis＆by A．A．Shlyk and T．N．Godnev． 479
SESSION 18B．PLANT BIOSYNTHESIS 494
The Root System as an Organ of Metabolism＆by A．L．Kursanov． 494
Radiochemical Identification of Diglycerophosphate and its Probable Role in Lipid Synthesis by Plants＆by A．A．Benson and B．Maruo． 510
Studies on the Biosynthesis of Alkaloids using Radioactive Trcer Technique＆by S．Shibata,I．Imaseki and M．Yamaraki． 520
The Use of Carbon-14 for Investigating the Mechanism of Biosynthesis of Rubber and its Concomitants in the Kok-Sagyz＆by E．A．Shilov． 523
The Use of Radiocarbon in the Study of Biosynthesis of Terpenes＆by G．V．Sukhov． 535
Studies on the Biosynthesis of Cyanidin with the Aid of Carbon-14-Labelled Compounds＆by H．Grisebach． 548
SESSION 19B．PLANT METABOLISM 553
The Effect of Water Stress on the Cell Wall Metabolism of Plant Tissue＆by L．Ordin． 553
Total Labelling of Organic Substances in Plants by Radioactive Carbon as a means of Studying Metabolic Breakdowns＆by A．M．Kusin and V．I．Tokarskaya． 565
Certain Data on the Physioloy and Metabolism of Yeast Saccharomyces Carisbergensis 776 in Fermentation of Malt Wort＆by I．Y．Veselov,S．S．Rylkin,N．V．Pokrovskaya and V．N．Shil． 579
Radioisotopes et culture des tissus vegetaux＆par Rene Heller． 595
SESSION 20B． 607
Mesure par la methods au C14 de l＇activite photosynthetique de quelques masses d＇eau du Pacifique Sud-Ouest en relation avec l＇Qude de la fertilite de ces memes eaux＆par H．Jitts at H．Rotschi． 607
The Results and Prospects of Using Carbon-14 for a Study of Organic Matter Cycle in Water Basins＆by J．I．Sorokin． 633
A Study on the Organic Productivity and the Solubility Product of CaCO3 in the Ocean by Means of Carbon-14＆by Y．Miyake． 651
Natural and Artificially(Air-Ploughing)Induced Movement of Radioactive Phosphorus from the Muds of Lakes＆by A．D．Hasler． 658
Feeding and Digestion in Marine Copepods＆by S．M．Marshall and A．P．Orr． 676