[588] Darwin, Fertilisation of Orchids, p. 159.

[589] Descent of Man, vol. i. p. 214.

[590] Laws of Botanical Nomenclature, p. 16.

[591] Waterhouse, quoted by Woodward in his Rudimentary Treatise of Recent and Fossil Shells, p. 61.

[592] Bentham’s Handbook of the British Flora (1866), p. 25.

[593] Philosophia Botanica (1770), § 157, p. 99.

[594] Ibid. § 159, p. 100.

[595] Amœnitates Academicæ (1744), vol. i. p. 70. Quoted in Edinburgh Review, October 1868, vol. cxxviii. pp. 416, 417.

[596] Descent of Man, vol. i. p. 228.

[597] Agassiz, Essay on Classification, p. 219.