Abstract :
The author is Head of the Australian National University Ceramics Workshop, Canberra School of Art, Baldessin Ct., Acton, GPO Box 804, Canberra ACT 2601, Australia. Presented at the Science and Art in Ceramics meeting held at the Royal institute of Great Britain, London on 21-23 October 1996. Manuscript received 30 January 1997; in final form 24 July 1998. BCT/259
