uted questions in natural history, must be
discussed in a separate chapter.

FOOTNOTES:

[Footnote 92: _Nature_, vol. iii. p. 165. Professor Meldola observed
that specimens of Danais and Euplaea in collections were less subject to
the attacks of mites _(Proc. Ent. Soc._, 1877, p. xii.); and this was
corroborated by Mr. Jenner Weir. _Entomologist_, 1882, vol. xv. p. 160.]

[Footnote 93: See Darwin's _Descent of Man_, p. 325.]

[Footnote 94: _Transactions of the Entomological Society of London_,
1869, p. 21.]

[Footnote 95: _Ibid._, p. 27.]

[Footnote 96: _Nature_, vol. iii. p. 147.]

[Footnote 97: Stainton's _Manual of Butterflies and Moths_, vol. i. p.
93; E.B. Poulton, _Proceedings of the Zool. Soc. of London_, 1887, pp.
191-274.]

[Footnote 98: See _Transactions of the Linnean Society_, vol. xxiii. pp.
495-566, coloured plates.]

[Footnote 99: These butterflies are now divided into two sub-families,
one of which is placed with the Danaidae; but to avoid confusion I shall
always speak of the American genera under the old term Heliconidae.]

[Footnote 100: R. Meldola in _Ann. and Mag. of Nat. Hist._, Feb. 1878,
p. 158.]

[Footnote 101: See _Trans. Linn. Soc._, vol. xxv. Wallace, on Variation
of Malayan Papilionidae; and, Wallace's _Contributions to Natural
Selection_ chaps. iii. and iv., where full details are given.]

[Footnote 102: See _Trans. Linn. Soc._, vol. xxvi., with two coloured
plates illustrating cases of mimicry.]

[Footnote 103: Edwards's _Butterflies of North America_, second series,
part vi.]

[Footnote 104: Professor Meldola informs me that he has recorded another
case of mimicry among British moths, in which Acidalia subsericata
imitates Asthena candidata. See _Ent. Mo. Mag._, vol. iv. p. 163.]

[Footnote 105: From Professor Meldola's translation of Dr. F. Mueller's
paper, in _Proc. Ent. Soc. Lond._, 1879, p. xx.]

[Footnote 106: _Island Life_, p. 255.]

[Footnote 107: This extension of the theory of mimicry was pointed out
by Professor Meldola in the paper already referred to; and he has
answered the objections to Dr. F. Mueller's theory with great force in
the _Annals and Mag. of Nat. Hist._, 1882, p. 417.]

[Footnote 108: Godman and Salvin's _Biologia Centrali-Americana,
Insecta, Coleoptera_, vol. iii. part ii., and vol. v.]

[Footnote 109: _Trans. Ent. Soc._, 1885, p. 369.]

[Footnote 110: _Proc. Cambridge Phil. Soc._, vol. iii. part ii., 1877.]

[Footnote 111: _Compte-Ren