[2]The geography of the Sahara as a whole is briefly treated in Le Sahara, by E. F. Gautier, Collection Payot, Paris, 1923, and with greater detail in Le Sahara, by H. Schirmer, Paris, 1893, but much recent work is not included in the latter.
[3]O. Bates: The Eastern Libyans (Macmillan), pp. 48-9.
[4]Cf. Rohlfs, Kufra, Chap. VIII.
[5]“Alguechet” in Leo Africanus, Vol. III. pp. 802, 818, etc. (For particulars see beginning of [Chap. IX.])
[6]Until motor-cars began to cross the Sahara further west.
[7]Bissuel, Les Touareg de l’Ouest, p. 63, says: “A plant called locally ‘Bettina’ and not the Alfalehle (Arabic: Falezlez) was used.”
[8]Gautier: La conquête du Sahara, Paris, 1922.
[9]See Life of Charles de Foucauld, by R. Bazin, translated by P. Keelan, and De Foucauld, Dictionnaire abrégé Touareg Français (Dialecte Ahaggar), publié par R. Basset, Alger, 1918-20.
[10]Jean: Les Touareg du Sud-Est, Paris, Larose, 1909.
[11]Barth: Travels and Discoveries in Central Africa, London, Longmans, 1857-8, 5 vols.