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Published online by Cambridge University Press: 18 August 2016
This paper is the result of research carried out by a Working Party set up by the Research Committee of the Institute in conjunction with the Students' Society in June 1967. J. K. Scholey acted as adviser of the Working Party, the members being G. T. Humphrey, F. R. Langham, R. E. Snelson (from February 1968) and J. D. Sparks. F. R. Wales was also a member until his departure to Australia in October 1967. The opinions expressed in this paper are personal to the members of the Working Party.