[3] Pelagaud: “Préhistoire en Syrie.”
[4] Moore, Popular Science Monthly, New York, March, 1880; Zeitschrift für Ethnologie: Berlin, 1887.
[5] “Monuments de Roknia,” p. 18.
[6] Haxthausen: “Mém. sur la Russie,” vol. ii., p. 204; A. Bogdanow: “Mat. pour Servir à l’Histoire des Kourganes,” Moscow, 1879; Margaret Stokes: “La Disposition des Principaux Dolmens de l’Irlande,” Rev. Arch., July, 1882.
[7] Sir A. de Capell Brooke: “Sketches in Spain and Morocco.”
[8] Tissot: “Récherches sur la Géographie Comparée de la Mauritanie Tinigitane.”
[9] Margaret Stokes: “La Distribution des Principaux Dolmens de l’Irlande.” Revue Arch., July, 1882.
[10] Sir W. Wilde: “Ireland, Past and Present.” Miss Buckland: “Cornish and Irish Prehistoric Monuments.” Anth. Inst., Nov., 1879. O’Curry: “Lectures on the Manuscript Materials of Irish History.”
[11] Bul. Soc. Pol. du Morbihan, April, 1885.
[12] S. Reinach, Rev. Arch., 1888. Wilson: “Megalithic Monuments of Brittany.” Cartailhac: “La France Préhistorique,” in which the measurements are given of the principal monuments of Brittany.