[217] Les Emules de Darwin, ii. p. 82.
[218] North British Review, July, 1867, p. 316.
[219] P. 313.
[220] November 5, 1903, Journal of Botany, January, 1904, p. 32.
[221] Dr. Hudson, see Nature, February 20, 1890, p. 375.
[222] Origin of Species, c. xi.
[223] Op. cit. p. 59.
[224] History of Creation, English Edition, ii. 353.
[225] The Genealogy of Animals: a Review of Haeckel's "Natürliche Schöpfungs-Geschichte." The Academy, 1869. Reprinted in Critiques and Addresses, and Darwiniana (Collected Works).
[226] The Thyroid gland in the throat, the function of which is unknown, was supposed to be absolutely without use. It is found, however, that its removal entails myxoedema, a condition closely allied to cretinism.