On 15 Mar, Stella Dextre Clarke <[log in to unmask]> wrote: > Leonard Will's helpful reply pointed to Thesaurofacet and BSI ROOT > Thesaurus, both masterminded by Jean Aitchison. Thank you both for your useful replies - I'll try to report progress if anything fruitful results. Cheers Peter A -- Peter M Adams [log in to unmask] (33 Victoria Avenue, Saffron Walden, Essex CB11 3AD) (Telephone 01799 520794)