[189] This whole subject has been discussed in chap. xxiii. vol. ii. of my ‘Variation of Animals and Plants under Domestication.’

[190] See the ever memorable ‘Essay on the Principle of Population,’ by the Rev. T. Malthus, vol. i. 1826, p. 6, 517.

[191] ‘Variation of Animals and Plants under Domestication,’ vol. ii. p. 111-113, 163.

[192] Mr. Sedgwick, ‘British and Foreign Medico-Chirurg. Review,’ July, 1863, p. 170.

[193] ‘The Annals of Rural Bengal,’ by W. W. Hunter, 1868, p. 259.

[194] ‘Primitive Marriage,’ 1865.

[195] See some good remarks to this effect by W. Stanley Jevons, “A Deduction from Darwin’s Theory,” ‘Nature,’ 1869, p. 231.

[196] Latham, ‘Man and his Migrations,’ 1851, p. 135.

[197] Messrs. Murie and Mivart in their “Anatomy of the Lemuroidea” (‘Transact. Zoolog. Soc.’ vol. vii. 1869, p. 96-98) say, “some muscles are so irregular in their distribution that they cannot be well classed in any of the above groups.” These muscles differ even on the opposite sides of the same individual.

[198] ‘Quarterly Review,’ April, 1869, p. 392. This subject is more fully discussed in Mr. Wallace’s ‘Contributions to the Theory of Natural Selection,’ 1870, in which all the essays referred to in this work are republished. The ‘Essay on Man’ has been ably criticised by Prof. Claparède, one of the most distinguished zoologists in Europe, in an article published in the ‘Bibliothèque Universelle,’ June, 1870. The remark quoted in my text will surprise every one who has read Mr. Wallace’s celebrated paper on ‘The Origin of Human Races deduced from the Theory of Natural Selection,’ originally published in the ‘Anthropological Review,’ May, 1864, p. clviii. I cannot here resist quoting a most just remark by Sir J. Lubbock (‘Prehistoric Times,’ 1865, p. 479) in reference to this paper, namely, that Mr. Wallace, “with characteristic unselfishness, ascribes it (i.e. the idea of natural selection) unreservedly to Mr. Darwin, although, as is well known, he struck out the idea independently, and published it, though not with the same elaboration, at the same time.”