[1862] Ib., p. 361.

[1863] Celtic Britain, 1904, p. 272.

[1864] Les Celtes, p. 30.

[1865] Rev. celt., vii, 1886, p. 181.

[1866] Keltic Researches, p. 24.

[1867] Ib., p. 21.

[1868] A. Bezzenberger, Beiträge zur Kunde der indogermanischen Sprachen, xviii, 1892, pp. 84-115, and especially 113-4.

[1869] W. F. Skene, The Highlanders of Scotland, 1902, pp. 381-401.

[1870] Hist. eccl., i, 12.—Incipit autem duorum ferme milium spatio a monasterio Aebbercurnig ad occidentem, in loco qui sermone Pictorum Peanfahel, lingua autem Anglorum Penneltun appellatur, &c.

[1871] E. W. B. Nicholson, Keltic Researches, pp. 4, 21. Cf. A. Bezzenberger, Beiträge, &c., xviii, 1892, pp. 98, 108.