Inquiries into human faculty and its development.

Galton, cousin of Charles Darwin, founded the science of Eugenics. In his important Inquiries he showed mathematically “the results of his experiments on the relations between the powers of visual imagery and of abstract thought, of the associations between the elements of different sense departments, of the correlation of mental traits, the associations of words, and the times taken in making the associations” (T. K. Penniman). The word “eugenics” first appears in the above book.