Age geological by radioactivity 1 Alkaloids kurchi 248 solanum 233 steroidal 231 veratrum 241 Amylosaccharides linear enzymic syn- thesis from cyclic 64 Amylose enzymic synthesis from glucose-1 phosphate 57 ; from maltose 62 Association of carboxylic acids 255 Atomic nucleus magnetic properties 279 Benzene hexachlorides molecular struc- Biological syntheses with isotopes 426 Bond energies and heats of formation 164 Bromine isotopes in organic compounds ture 227 433 436 440 44 1 Carbon isotopes in organic compounds 415 Carboxylic acids association 255 Chlorine isotopes in organic compounds Chromatography inorganic 307 Compressibility of fluids and velocity of sound 84 Conductivity of electrolytes effect of ultrasonic waves 90 Crystal analysis by X-rays in determina- tion of molecular structure 336 Cyclitols molecular structure 227 440 Debye effect of ultrasonic waves 91 Deuterium in organic compounds 411 Diamagnetism atomic ionic and mole- Differential syntheses in molecular-struc- Dimerisation of carboxylic acids 260 cular theory 379 ture determination 357 Electrodeposition effect of ultrasonic Electrolytes effects of ultrasonic waves 84 Electron-density measurements experi- Enzymic synthesis of polysaccharides 56 waves 98 mental and theoretical 375 Fatty acids natural and synthetic straight- chain 175 naturally occurring 193 saturated synthesis 176 unsaturated synthesis 182 Fluorine isotopes 440 Fourier refinement of atomic co-ordinates 349 INDEX 1953 445 Free radicals reactions 198 Frequencies characteristic of crystalline of paraffins in the liquid state 33 42 Fructosans of levan class enzymic syn- of inulin class enzymic synthesis 77 n-parafhs 31 45 48 51 53 54 thesis 75 Galactans enzymic synthesis 74 Germanium heat of vaporisation 121 a-Glucosans of dextran class enzymic of starch class enzymic synthesis 56 Glycogen enzymic synthesis from glu- synthesis 70 cose-1 phosphate 68 Halogens isotopes in organic compounds Heats of formation and bond energies 440 164 of simple inorganic compounds 134 experimental determination 138 cycZoHexane stereochemistry 22 1 Hydrogen isotopes in organic compounds 41 1 atoms location in X-ray analysis of cryst,als 359 bonding in solid carboxylic acids 267 Infra-red spectra of hydrocarbons 19 Inorganic compounds heats of formation Iodine isotopes in organic compounds Ion exchange and chromatography 323 Isomerism rotational in paraffis 24 Isotopic synthesis of organic compounds 134 44 1 40 7 Kurchi alkaloids 248 Labelling of organic compounds by iso- Least-squares method of structure analy- topes 407 sis 364 Magnetic resonance absorption nuclear Magnetism and inorganic chemistry 377 Magnet'on nuclear 280 Methyl radicals metathetical reactions Molecular structure determination by 279 208 210 reactions 198 X-ray analysis 335 446 INDEX Nitrogen isotopes in organic compounds Nuclear magnetic resonance absorption 430 279 Organic compounds isotopically labelled Oxygen isotopes in organic compounds synthesis 407 ; purity 409 433 ParafEns infra-red and Raman spectra 19 n-Paraffins trans-isomers configuration Paramagnetic susceptibility applications Paramagnetism theory of 380 Periodic table survey of magnetic proper- ties of elements in 390 and heats of formation 142 29 386 Pharmacology of steroidal alkaloids 264 Phase problem solution of in X-ray analysis of crystal structure 342 Phosphorus isotopes in organic com- pounds 434 Pleochroic haloes 5 Polymerisation of carboxylic acids 265 Polysaccharides enzymic synthesis 56 Potentials electrode effects of ultrasonic waves on 03 Radioactivity in geological age determina- Radiocarbon method for geological age 13 Raman spectra of hydrocarbons 19 Resonance absorption paramagnetic 405 Ring systems condensed molecular struc- tion 1 ture 229 Silicon heat of vaporisation 11 6 monoxide heat of formation and dis- sociation energy 122 Solanum alkaloids 233 Solvation from compressibility data 89 Space charge creation in electrolytes by Stability in relation to valency 168 Stellar energy 17 Stereochemistry and magnetic properties 389 402 ulOrasonic waves 91 of cyclohesane 221 Steroidal alkaloids 231 Sulphur isotopes in organic compounds 437 Thermal motion effects in X-ray crystal Thermochemistry of elements of groups Tin heat of vaporisation 118 Transuranic elements magnetic propsr- Tritium in organic compounds 414 analysis 3 6 1 IVB and IV 103 ties 400 Ultrasonic waves effects on electrolytes and electrode processes 84 Valency in relation to stability 168 Veratrum alkaloids 241 Vibrations carbon-hydrogen 2 1 skeletal 24 X-Rays determination of molecular struc- ture of crystals 335