Machine derived contents note: Preface; Introduction; Part I. The Descriptive Framework: 1. Meaning and use of locative expressions; 2. Normal situation types; 3. Purpose; 4. Ideal meanings; 5. Geometric descriptions; 6. Pragmatic factors; 7. Use types; Part II. An Excursion into Computer Models: 8. Decoding and encoding; Part III. Case Studies: 9. The three basic topological prepositions; 10. The projective prepositions; Conclusion: Index