Note 80 — III
Philip Askell Benton translation
Even immediately to the south of Chad shore, but outside Bornu, in Bagirmi country, there is a similar rock formation, Hadjer el Hamis (called Hadjer Teous by Denham) composed, according to Foureau, of rhyolite. Foureau, Doc. sc., p. 728. Cf. also Denham, ii. 52, and the plate in Lenfant, p. 203. [Cf. p. 311 of the present work.]