Book Reviews : American Indian and White Children: A Socio-Psychological Investigation. By R. J. HAVIGHURST and B. L. NEUGARTEN (Chicago and London,University of Chicago Press,1955,1969). xiii + 335 pp. £6·50 Intelligence and Cultural Differences: A Study of Cultural Learning and Problem Solving. By KENNETH EELLS,et al. (Chicago and London,University of Chicago Press,1951,1969). xii + 388 pp. £8·10

Greenfield, P.M. , 'On Culture and Conservation' Studies in Cognitive Growth, Bruner, J. et al. (eds.) (New York, Wiley, 1966).

Price-Williams, D.N. , 'The Concept of the Conservation of Quantities among Primitive Children ' Acta Psychologia (18, 1961) pp. 297-305.

Vernon, P.E. , Intelligence and the Cultural Environment ( London, Methuen, 1969).