Volume 21 1967 Cumulative Indexes for Authors and Titles are to be found at the end of Volume 20. Copies may be obtained from The Publications Sales Officer The Chemical Society. Burlington House London W.l price 5/-d. post free. Quarterly Reviews INDEX OF AUTHORS Abraham E. P. 231 Ashby E. C. 259 Bransden B. H. 474 Bruce J. M. 405 Buckingliam A. D. 195 Davidson R. S. 249 Evans U. R. 29 Fensham P. J. 507 Howe A. T. 507 Lambert J. D. 67 Lee J. B. 429 Luz Z. 458 McLennan D. J. 490 Muetterties E. L. 109 Orr B. J. 195 Parker W. 331 Pelletier S. W. 525 Penzer G. R. 43 Radda G. K. 43 Ramage R. 331 Riddell F. G. 364 Roberts J. S. 331 Robinson D. L. 314 Silver B. L. 458 Sklarz B. 3 Theobald D. W. 314 Uff B. C. 429 Waley S . G. 379 Walker D. C. 79 Weatherston J. 287 Wehry E. L. 213 Wright C.M. 109 INDEX OF TITLES Alkaloids the chemistry of the Hydrogen abstraction in the liquid C,,-diterpene 525 phase by free radicals 249 Arthropod defensive substances the Isoalloxazines (Flavines) the chemistry chemistry of 287 and biological function of 43 Biogenesis sesquiterpene 331 Light-induced reactions of quinones Carbanion mechanism of olefin- 405 forming elimination 490 Liquid phase hydrogen abstraction 231 in the by free radicals 249 Cephalosporin C Group stances Conformational analysis heterocyi: Nuclear and electronic spin resonance 364 chemical applications of oxygen-1 7 Co-ordination number molecular 458 109 Olefin-forming elimination carbanion 490 polyhedra of high Cyclohexane chemistry conforma- mechanism Of tional abnormalities in 314 Organic chemistry of Periodates 3 Organic reactions involving electro- the C, 525 philic oxygen 429 Electron the hydrated 79 Oxygen organic reactions involving Electron spin resonance chemical electrophilic 429 and 458 resonance chemical applications of Electronic properties of binary com- 458 metals 507 Photochemical behaviour of transition- Electrophilic oxygen organic reactions metal complexes 21 3 involving 429 Sesquiterpere biogenesis 33 1 Elementary particles 474 Rusting the mechanism of 29 Enzyme action mechanism of 379 Quinones light-induced reactions of Energy transfer vibration-vibration 405 in gaseous collisions 67 Transition-metal complexes photo- Free radicals hydrogen abstraction in &emical behaviour of 21 3 the liquid phase by 249 Transition metals electronic proper- Grignard reagents.Compositions and ties of binary compounds of the mechanisms of reaction 259 first-row 507 Heterocyclic conformational analysis Vibration-vibration energy transfer 364 in gaseous collisions 67 ChemistrY of arthropod defensive sub- Molecular hyperpolarisabilities 195 Diterpene alkaloids the chemistry of applications of oxygen-1 7 nuclear Ox~gen-17 nuclear and electron spin pounds of the fist-row transition Periodates9 organic chemistry of 3 550