[2008] Schmidt’s ‘Jahrbücher des gesammten Medicin,’ vol. clxxxi. p. 89.
[2009] It has escaped even Mr. Huth’s keen observation.
[2010] Mygge, ‘Om Aegteskaber mellem Blodbeslaegtede,’ pp. 162, 272.
[2011] Dahl, ‘Bidrag til Kundskab om de Sindssyge i Norge,’ pp. 99-102.
[2012] Professor Mantegazza has given a list of fifty-seven authors who have opposed these marriages, and of fifteen who have defended them (‘Jour. Statist. Soc.,’ vol. xxxviii. p. 179).
[2013] Huth, loc. cit. pp. 141-143.
[2014] Beechey, loc. cit. vol. i. p. 86.
[2015] Voisin, in ‘Mém. Soc. d’Anthr.,’ vol. ii. p. 447.
[2016] Mygge, loc. cit. p. 126.
[2017] ‘Edinburgh Medical Journal,’ vol. vii. pt. ii. p. 876.