[1939] See Greenwell’s Brit. Barrows, pp. 10, 15-6.

[1940] Brit. Barrows, p. 682.

[1941] Ib., p. 746; L. Rütimeyer and W. His, Crania Helvetica, 1864, p. 12. The average cephalic index of 29 skulls of the Sion type described in Crania Helvetica is 77.2, the highest being 81.9, and the lowest 73. Not one of the 22 illustrations has the slightest resemblance to the more strongly marked brachycephalic Round Barrow type. The Sion type, moreover, is orthognathous, whereas the tall Round Barrow men were often extremely prognathous.

Taking into account the skulls of the Sion type which have been measured since the publication of the work of His and Rütimeyer, the average cephalic index is 76. See Rev. mensuelle de l’École d’anthr., v, 1895, p. 153.

[1942] Rice Holmes, Caesar’s Conquest of Gaul, 1899, p. 308.

[1943] Ib., p. 296, and n. 3.

[1944] See J. Beddoe, The Races of Britain, p. 16; Scottish Review, xxi, 1893, p. 361; W. Z. Ripley, The Races of Europe, p. 310: and cf. Sir W. R. Wilde, The Beauties of the Boyne, 2nd ed., 1850, p. 40; W. C. Borlase, Dolmens of Ireland, iii, 1006-12; and Proc. Roy. Irish Acad., xxiv, 1902-4, sect. C, pp. 1-6. Professor A. C. Haddon (ib., 3rd ser., iv, 1896-8, p. 584) suggests that the brachycephalic people who did invade Ireland were ‘the Neolithic brachycephals of Central Europe’, and that ‘the Round Barrow race had comparatively little to say to Irish ethnology’.

[1945] See pp. 126-7, supra.

[1946] See K. Müllenhoff, Deutsche Altertumskunde, ii, 1887, pp. 236-8, and cf. H. d’A. de Jubainville, Les premiers habitants de l’Europe, i, 1889, p. 262, and Report of ... the Brit. Association, 1900, p. 894.

[1947] See p. 494, infra.