Critical Notice. Kamin,L. J.,The Science and Politics of I.Q. Potomac,Maryland: Lawrence Erlbaum Associates. 1974. pp. 183. £5.90

Burks B. S. (1928). The relative influence of nature and nurture upon mental development: a comparative study of foster parent—foster child resemblance and true parent—true child resemblance. Twenty-seventh yearbook of the National Society for the Study of Education Bloomington, Illinois: Public School Publishing Co. Part I.

Burt C. (1955). The evidence for the concept of intelligence. British Journal of Educational Psychology 25, 158–77.

Burt C. (1966). The genetic determination of differences in intelligence: a study of monozygotic twins reared together and apart. British Journal of Psychology 57, 137–53.

Erlenmeyer-Kimling L. Jarvik L. F. (1963). Genetics and intelligence: a review. Science (Washington) 142, 1477–9.

Freeman F. N. Holzinger K. J. Mitchell B. C. (1928). The influence of environment on the intelligence, school achievement and conduct of foster children. Twenty-Seventh Yearbook of the National Society for the Study of Education. Part I Bloomington, Illinois: Public School Publishing Co.

Herrnstein R. J. (1973). I.Q. in the Meritocracy Boston: Atlantic Monthly Press.

Juel-Nielsen N. (1965). Individual and environment: a psychiatric-psychological investigation of monozygotic twins reared apart. Acta Psychiatrica et Neurologica Scandinavica Monograph Supplement 183.

Leahy A. M. (1935). Nature-nurture and intelligence. Genetic Psychology Monographs 17, 235–308.

Newman H. H. Freeman F. N. Holzinger K. J. (1937). Twins: a Study of Heredity and Environment Chicago: University of Chicago Press.

Shields J. (1962). Monozygotic Twins Brought Up Apart and Brought Up Together London: Oxford University Press.

Sims V. M. (1931). The influence of blood relationship and common environment on measured intelligence. Journal of Educational Psychology 22, 56–65.

Skodak M. Skeels H. M. (1949). A final follow-up study of one hundred adopted children. Journal of Genetic Psycholgy 75, 85–125.

Snygg D. (1938). The relation between the intelligence of mothers and of their children living in foster homes. Journal of Genetic Psychology 52, 401–6.