[2968] Stieda, ‘Das Sexualverhältniss der Geborenen,’ pp. 19, 20, 34, 35, &c.; quoted by v. Oettingen, loc. cit. p. 67.
[2969] For this statement I am indebted to Mr. Joseph Jacobs.
[2970] Burton, ‘The City of the Saints,’ p. 521. Idem, ‘Abeokuta,’ vol. i. p. 212, note.
[2971] ‘The Anthropological Review,’ vol. viii. p. cviii.
[2972] Sanderson, ‘Polygamous Marriage among the Kafirs of Natal,’ in ‘Jour. Anthr. Inst.,’ vol. viii. pp. 254-260.
[2973] Burton, ‘The City of the Saints,’ p. 521.
[2974] Darwin, ‘The Descent of Man,’ vol. i. pp. 378, et seq.
[2975] Düsing, ‘Die Regulierung des Geschlechtsverhältnisses bei der Vermehrung der Menschen, Tiere und Pflanzen.'
[2976] Ploss, ‘Ueber die das Geschlechtsverhältniss der Kinder bedingenden Ursachen,’ in ‘Monatsschrift für Geburtskunde und Frauenkrankheiten,’ vol. xii. pp. 321-360.
[2977] Ibid., vol. xii. p. 340.