Contents Part 1: Issues in Developmental Explanation 1. Describing the child's mind Kathleen V. Wilkes (St. Hilda's College, Oxford) 2. On the very idea of acquiring a concept Andrew Woodfield 3. The development of 'introspection William Lyons (University of Glasgow) Part 2: The Development of Perception 4. The explanatory depth of propositional attitudes: perceptual developments as a test case Adam Morton (University of Bristol) 5. Reasons for retaining the view that there is perceptual development in childhood James Russell (University of Liverpool) Part 3: Ego Development 6. A dualist perspective on psychological development Howard Robinson (University of Liverpool) 7. Synthesis in the imagination: psychoanalysis infantile experience, and the concept of an object James Hopkins (Kings College, University of London) Part 4: Issues in Stage Theory 8. Concept formation and moral development Gareth B. Matthews (University of Massachusetts) 9. On Piaget on necessity Leslie Smith (University of Lancaster, Cartmel College) 10.Piaget on logic and number: the philosophical background Wolfe Mays (Manchester Polytechnic) Part 5: An Overview 11.An Overview Carol Feldman (New York University) and Jerome Bruner (The Graduate Faculty, New School for Social Research, New York)