[299] Prof. Nägeli has carefully described several striking cases in his 'Botanische Mittheilungen,’ B. ii. 1866, s. 294-369. Prof. Asa Gray has made analogous remarks on some intermediate forms in the Compositæ of N. America.
[300] ‘Origin of Species,’ 5th edit. p. 68.
[301] See Prof. Huxley to this effect in the ‘Fortnightly Review,’ 1865, p. 275.
[302] ‘Lectures on Man,’ Eng. translat. 1864, p. 468.
[303] ‘Die Racen des Schweines,’ 1860, s. 46. ‘Vorstudien für Geschichte, &c., Schweineschädel,’ 1864, s. 104. With respect to cattle, see M. de Quatrefages, ‘Unité de l’Espèce Humaine,’ 1861, p. 119.
[304] Tylor’s ‘Early History of Mankind,’ 1865; for the evidence with respect to gesture-language, see p. 54. Lubbock’s ‘Prehistoric Times,’ 2nd edit. 1869.
[305] ‘The Primitive Inhabitants of Scandinavia,’ Eng. translat. edited by Sir J. Lubbock, 1868, p. 104.
[306] Hodder M. Westropp, on Cromlechs, &c., ‘Journal of Ethnological Soc.’ as given in ‘Scientific Opinion,’ June 2nd. 1869, p. 3.
[307] ‘Journal of Researches: Voyage of the “Beagle,”’ p. 46.
[308] ‘Prehistoric Times,’ 1869, p. 574.