Note 3444 — BOOK V. AN ACCOUNT OF COUNTRIES, NATIONS, SEAS, TOWNS, HAVENS, MOUNTAINS, RIVERS, DISTANCES, AND PEOPLES WHO NOW EXIST OR FORMERLY EXISTED.

This spring is also mentioned by Pliny in B. ii. c. 106. Marcus suggests that the Debris of Pliny is the same as the Bedir of Ptolemy. He also remarks that the English traveller Oudney discovered caverns hewn out of the sides of the hills, evidently for the purposes of habitation, but of which the use is not known by the present people. These he considers to have been the abodes of the ancient Troglodytæ or “cave-dwellers.” In the Tibesti range of mountains, however, we find a race called the Rock Tibboos, from the circumstance of their dwelling in caves.