Concludes that if abilities are examined in terms of the experiences children undergo in any culture, it is apparent that there are few dumb children if they are classified from the perspective of the community of adaptation. (Author/AM)

Contents of this symposium comprises: Introduction (W. B. Dockrell); The Genetics of Intelligence (Sir C. Burt); Structuring Mental Acts (P. R. Merrifield); A "Piagetian" Test of Cognitive Development (R. D. Tuddenham); The British Intelligence Scale (R. W. Warburton); Intelligence (P. E. Vernon); Hierarchical Theories of Mental Ability…