[1998] Huth, loc. cit. p. 36.
[1999] Galton, ‘Hereditary Genius,’ p. 152.
[2000] Huth, p. 37, note.
[2001] Bailey, in ‘Trans. Ethn. Soc.,’ N. S. vol. ii. pp. 294, 296.
[2002] Périer, in ‘Mém. Soc. d’Anthr.,’ vol. i. p. 223. Voisin, ‘Contribution à l’histoire des mariages entre consanguins,’ ibid., vol. ii. p. 447.
[2003] Huth, loc. cit. ch. v. pp. 186-241.
[2004] Ibid., pp. 217, 226.
[2005] G. H. Darwin, ‘Marriages between First Cousins in England,’ in ‘The Fortnightly Review,’ vol. xviii. p. 41.
[2006] Idem, ‘Marriages between First Cousins in England,’ in ‘Journal of the Statistical Society,’ vol. xxxviii. pp. 181, 170, 182.
[2007] Idem, ‘Note on the Marriages of First Cousins,’ ibid., vol. xxxviii. pp. 344-346.