[33] “Les Âges Préhistoriques en Espagne et en Portugal.”
[34] “Stone Implements from the Northwestern Provinces of India,” Journal of the Asiatic Society of Bengal, Calcutta, 1883.
[35] Literary Journal of Madras, vol. xiv.
[36] “L’Âge de Pierre et la Classification Préhistorique d’après les Sources Égyptiennes,” Paris, 1879.
[37] Pitt Rivers: “On the Discovery of Chert Implements in the Nile Valley,” British Association, York, 1881.
[38] Belluci: “L’Eta della Pietra in Tunisia,” Roma, 1876, Bol. della Soc. Geog. Italiana, 1876.
[39] “The Stone Age of South Africa,” Journ. Anth. Institute, 1881.
[40] Revue des Deux-Mondes, march 1, 1878.
[41] De Quatrefages: Rev. d’Ethnographie, 1883, p. 97, etc.
[42] Sir J. Lubbock: “Prehistoric Times,” pp. 483, 549.