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NORTH-WEST AFRICA.
basaltic promontory of Jinet, the limestone Dellys chain, and the crests of Azeffun, complete this extensive orographic system, which is broken only by difficult passes and the route opened in the north-west between the Lower Seban and Isser river valleys. While Great Kabylia from Bougie to Menerville is completely encircled
Fig. 68. — Gorges of the Wed Agriun.
by a good road, which will soon be supplemented by a railway, the heart of the country is pierced only by a single carriage route, constructed in the year 1885.
East of the Sahel Valley begins the partly volcanic Babor range, a continuation of the Jurjura system, over 180 miles in length, with peaks covered with snow till
