Contributors; 1. Introduction Ted Briscoe; 2. Skeptical and credulous default unification with applications to templates and inheritance Bob Carpenter; 3. Prioritised multiple inheritance in DATR Roger Evans, Gerald Gazdar and Lionel Moser; 4. Some reflections on the conversion of the TIC lexicon into DATR Lynne J. Cahill; 5. Norms or inference tickets? a frontal collision between intuitions Michael Morreau; 6. Issues in the design of a language for representing linguistic information based on inheritance and feature structures Rémi Zajac; 7. Feature-based inheritance networks for computational lexicons Hans-Ulrich Krieger and John Nerbonne; 8. A practical approach to multiple default inheritance for unification-based lexicons Graham Russell, Afzal Ballim, John Carroll and Susan Warwick-Armstrong; 9. The ACQUILEX LKB: an introduction Ann Copestake, Antonio Sanfilippo, Ted Briscoe and Valeria de Paiva; 10. Types and constraints in the LKB Valeria de Paiva; 11. LKB encoding of lexical knowledge Antonio Sanfilippo; 12. Defaults in lexical representation Ann Copestake; 13. Untangling definition structure into knowledge representation Piek Vossen and Ann Copestake; Appendices; References; Indexes.