by S. R. Cockett and K. A. Hilton. by V. E. Cosslett and W. C. Nixon. by W.B. Gillett and J.E. Moon. by B. R. T. Frost and M. B. Waldron. by A. B. Glanvill and E. N. Denton. by D. C. Miles [and] J. H. Briston. ed. by A. r. Katritzky and A. J. Boulton. by D.T.E. Hunt and A.L. Wilson. by E. A. Coulson and E. F. G. Herington. by H. A. J. Pieters and J. W. Creyghton.