Vol 19

Classics in Psychology, 1883

by Francis Galton

Published 1 November 1998
The first systematic, scientific treatise on individual differences in psychological phenomena. Galton's work marked the beginning of the scientific study of imagery and the association of ideas. Here for the first time he sketched out the essentials of a theory of mental testing.


Vol 6

Classics in Psychology, 1869

by Francis Galton

Published 1 November 1998
The first quantitative analysis of human mental ability. Galton introduced the notion that mental ability was normally distributed in much the same ways as are physical traits. His strong nativistic perspective served as the point of origin for the nature/nurture debate in its modern form.