Footnotes

[1] Wallace, Tropical Nature, p. 206.

[2] Op. cit., p. 206.

[3] Evolution, Old and New, p. 346.

[4] On a New Method of Expressing the Law of Specific Change. By A. Tylor.

[5] Animals and Plants under Domestication, vol. ii., p. 350.

[6] Animals and Plants under Domestication, vol. ii., p. 370.

[7] Pl. I., Figs 1-3.

[8] Pl. II., Figs. 1-3

[9] Pflüger's Archiv. f. d. ges. Phys. Bd. xxix, 1882, quoted by Romanes. Mental Evolution, p. 80, 1883. _Op. cit._ p. 80.

[10] Quoted by Romanes, _op. cit._ p. 81.

[11] Descent of Man, vol. ii., p. 132.

[12] Quart. Journ. Sci., July 1868, p. 325.

[13] Studies in the Theory of Descent.

[14] See photographs in Hutchinson's Illustrations of Clinical Surgery.

[15] See Plate IV.

[16] Desc. Man, vol. ii, p. 133, fig. 52.

[17] Compare his figs. 56 to 58 op. cit.

[18] Desc. Man, vol. ii., p. 134.

[19] Leidy. Rhizopoda of N. America, p. 16.

[20] Haeckel. Die Radiolarien, Berlin, 1862.

[21] Sollas. Spongidæ. Cassell's Nat. Hist. Vol. vi., p. 318.

[22] Allman's Hydroids. Ray. Soc., p. 123.

[23] Compare with Hydra above.

[24] Allman. Monograph of Tubularian Hydroida. Ray. Soc., p. 135.

[25] Allman, op. cit., p. 139.

[26] Huxley. Oceanic Hydrozoa, pp. 32, 46, 50.

[27] Fauna und Flora des Golfes von Neapel. Die Actinien. 1884.

[28] The middle division of the thorax.

[29] Hinder division of thorax.

[30] Dallas in Cassell's Nat. Hist., vol. vi., p. 27.

[31] In the true scallop pattern the convexity is turned towards the body of the insect.

[32] J. W. Fuller on the Breathing Apparatus of Aquatic Larvæ. Proc. Bristol Nat. Soc.

[33] Entomologist, vol. xvi., p. 169, 1883.

[34] Nature. R. Meldola on Melanism, 1885.

[35] Elements of Comparative Anatomy, by C. Gegenbaur. Translated by Jeffrey Bell and Ray Lankester, 1878, p. 285.

[36] Spiders of Great Britain and Ireland, J. Blackwell. Ray. Soc., 1861.

[37] The decoration of many of the Hoverer flies and wasps is of a similar character.