Galton sent his seven-page questionnaire to 190 leading ‘men of science’ (mainly elected fellows of the Royal Society) seeking information on four main areas:
- ‘their earliest antecedents, including hereditary influences’;
- ‘the inborn quality of their mind and body’;
- the ‘causes that first induced them to pursue science’
- and ‘the education they received’.
Over one hundred scientists completed the survey, including Charles Darwin. You can read Galton’s findings in English Men of Science – the appendix contains a version of the survey questions edited for the book.