The Interpretation of Ritual: Essays in Honour of A. I. Richards: J. S. La Fontaine (ed.). Tavistock Publications, London, 1973. Pp. xviii + 296. Price: £3.50. Paperback £1.75.The Interpretation of Symbolism.Roy Willis, (Ed.). Malaby Press. London 1975. Pp. xv + 181. Price: £6.75. ISBN O 460 14004 3.Rethinking Symbolism.By Dan Sperber, Cambridge University Press. 1975. Pp. xiii + 153, (trans. Alice L. Morton). Price: (paperback) £1.90. ISBN 0521 0996