Letters sent following the publication of "The History of Twins As A Criterion of the Relative Powers of Nature and Nurture" Letters sent to Francis Galton following the publication of "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), from: Ansell, C Beddoe, J Child, J Crawford, J R Darwin, C R Darwin, Sir G H Du Cane, Sir E F Evans, E B Fraser's Magazine Gilchrist, J Green, E P Hill, C G Hooker, Sir J D Lushington, V Maturin, C G Morgan, A Playfair, L Rawson, Sir R W Robinson, A Romanes, G J Tabor, M C Townsend, M Wright, F W. 1875-1876