| Description | Material relating to Francis Galton's inquiries into the effects of nature and nurture on the physical and mental characteristics of twins, resulting in his publications "The History of Twins As A Criterion of the Relative Powers of Nature and Nurture", Fraser's Magazine 12 (1875: 566-76), and the revised version reprinted in the Journal of the Anthropological Institute, 5 (1876: 391-406). The material consists of:
Letters received in response to Questions about Twins circulars.
Data summaries, circulars, notes and manuscript drafts.
Letters regarding Freemartins. |