[30] Eschricht, Ueber die Richtung der Haare am menschlichen Körper 'Müllers Archiv für Anat. und Phys.’ 1837, s. 47. I shall often have to refer to this very curious paper.
[31] Paget, ‘Lectures on Surgical Pathology,’ 1853, vol. i. p. 71.
[32] Eschricht, ibid. s. 40, 47.
[33] Dr. Webb, ‘Teeth in Man and the Anthropoid Apes,’ as quoted by Dr. C. Carter Blake in ‘Anthropological Review,’ July, 1867, p. 299.
[34] Owen, ‘Anatomy of Vertebrates,’ vol. iii. pp. 320, 321, and 325.
[35] ‘On the Primitive Form of the Skull,’ Eng. translat. in ‘Anthropological Review,’ Oct. 1868, p. 426.
[36] Owen, ‘Anatomy of Vertebrates,’ vol. iii. pp. 416, 434, 441.
[37] ‘Annuario della Soc. d. Nat.’ Modena, 1867, p. 94.
[38] M. C. Martins (“De l’Unité Organique,” in ‘Revue des Deux Mondes,’ June 15, 1862, p. 16), and Häckel (‘Generelle Morphologie,’ B. ii. s. 278), have both remarked on the singular fact of this rudiment sometimes causing death.
[39] ‘The Lancet,’ Jan. 24, 1863, p. 83. Dr. Knox, ‘Great Artists and Anatomists,’ p. 63. See also an important memoir on this process by Dr. Grube, in the ‘Bulletin de l’Acad. Imp. de St. Pétersbourg,’ tom. xii. 1867, p. 448.