454 QUARTERLY REVIEWS Stereoregular addition polymerisa- Steric hindrance 2 107; 11 1 Steroidal alkaloids 7 231 Sterols steroids and terpenoids bio- genesis of. Part 1. Biogenesis of cholesterol and the fundamental steps in terpenoid biosynthesis. Part 2. Phytosterols terpenes and the physiologically active steroids 19 168 201 Strengths of organic bases prediction of 18 295 Structure of liquids in relation to their transport properties 14 236 Substituent interactions in ortho- substituted nitrobenzenes 18 389 Substitutions aroma tic nucleoph ilic mechanism and reactivity in 12 1 Sugar epoxides 13 30 Sulphur-fluorine bonds compounds containing 15 30 Sulphur nitride and its derivatives 10,437 Sulphuric acid behaviour of organic compounds in 8 40 Surface chemistry adsorption energy and adsorption equilibria 15 99 Surface compounds the chemistry of carbon-oxygen 13,287 Sydnones 11 15 Synthesis of sesquiterpenes 18,270 Synthetic gemstones 15 1 tion 16 361 Tautomerism of phenols 10 27 Technetium chemistry an outline of 16 299 Terpenes di- and tri- synthesis of 16 117 Tetronic acids 14 292 Theory of charge-transfer spectra 15 191 Thermochemical properties of phos- phorus compounds.17,204 Thermochemistry of the elements of Group IVB and IV comments on 7 103 Thermodynamics of ion association in aqueous solution 14 402 Thermodynamic properties estima- tion of for organic compounds and chemical reactions 9 229 Thermodynamic properties of high polymers and their molecular inter- pretation 1 265 Thermodynamic properties of organic oxygen compounds 15 125 Tin acceptor properties of quadri- positive 17 382 Topotactic reactions in inorganic oxy-compounds 16,343 Tracers radioactive preparation of 2 93 Transformation asymmetric and asymmetric induction 1 299 Transformations related and photo- chemical rearrangements 15 393 Transformations thermal in solids 11 246 Transition metals cyanide complexes of the.16 188 Transition-metal compounds crystal- line electron resistance in 14. 427 Transitions in solids and liquids 3 65 Transport control in heterogeneous reactions 6 157 Transport properties of Iiquids in relation to their structure 14 236 Triplet state 12 205 Triterpenes tetracyclic 9 328 Tropolones 5 99 Tryptophan biological degradation of 5 227 Ultrasonic analysis of molecular relaxation processes in liquids 11 134 Ultrasonic waves effects of on electrolytes and electrolytic pro- cesses 7 84 Vacuum microbalance techniques theory and applications of 19 231 Vapours of the elements 19,77 Veratrum alkaloids 12 34 Vibrational spectra of ionic melts 17 Wittig reaction 17.406 Wool wax constitution of 5 390 X-Ray crystal analysis modern methods of determination of mole- cular structure by and their ac- curacy 7,335 p-Xylylene chemistry of and of its analogues and polymers 12 301 225 454 QUARTERLY REVIEWS Stereoregular addition polymerisa- Steric hindrance 2 107; 11 1 Steroidal alkaloids 7 231 Sterols steroids and terpenoids bio- genesis of. Part 1. Biogenesis of cholesterol and the fundamental steps in terpenoid biosynthesis. Part 2. Phytosterols terpenes and the physiologically active steroids 19 168 201 Strengths of organic bases prediction of 18 295 Structure of liquids in relation to their transport properties 14 236 Substituent interactions in ortho- substituted nitrobenzenes 18 389 Substitutions aroma tic nucleoph ilic mechanism and reactivity in 12 1 Sugar epoxides 13 30 Sulphur-fluorine bonds compounds containing 15 30 Sulphur nitride and its derivatives 10,437 Sulphuric acid behaviour of organic compounds in 8 40 Surface chemistry adsorption energy and adsorption equilibria 15 99 Surface compounds the chemistry of carbon-oxygen 13,287 Sydnones 11 15 Synthesis of sesquiterpenes 18,270 Synthetic gemstones 15 1 tion 16 361 Tautomerism of phenols 10 27 Technetium chemistry an outline of 16 299 Terpenes di- and tri- synthesis of 16 117 Tetronic acids 14 292 Theory of charge-transfer spectra 15 191 Thermochemical properties of phos- phorus compounds.17,204 Thermochemistry of the elements of Group IVB and IV comments on 7 103 Thermodynamics of ion association in aqueous solution 14 402 Thermodynamic properties estima- tion of for organic compounds and chemical reactions 9 229 Thermodynamic properties of high polymers and their molecular inter- pretation 1 265 Thermodynamic properties of organic oxygen compounds 15 125 Tin acceptor properties of quadri- positive 17 382 Topotactic reactions in inorganic oxy-compounds 16,343 Tracers radioactive preparation of 2 93 Transformation asymmetric and asymmetric induction 1 299 Transformations related and photo- chemical rearrangements 15 393 Transformations thermal in solids 11 246 Transition metals cyanide complexes of the. 16 188 Transition-metal compounds crystal- line electron resistance in 14.427 Transitions in solids and liquids 3 65 Transport control in heterogeneous reactions 6 157 Transport properties of Iiquids in relation to their structure 14 236 Triplet state 12 205 Triterpenes tetracyclic 9 328 Tropolones 5 99 Tryptophan biological degradation of 5 227 Ultrasonic analysis of molecular relaxation processes in liquids 11 134 Ultrasonic waves effects of on electrolytes and electrolytic pro- cesses 7 84 Vacuum microbalance techniques theory and applications of 19 231 Vapours of the elements 19,77 Veratrum alkaloids 12 34 Vibrational spectra of ionic melts 17 Wittig reaction 17. 406 Wool wax constitution of 5 390 X-Ray crystal analysis modern methods of determination of mole- cular structure by and their ac- curacy 7,335 p-Xylylene chemistry of and of its analogues and polymers 12 301 225