Page:Africa by Élisée Reclus, Volume 2.djvu/376

 enclosing his tomb has become the religious metropolis of the whole country, and one of the famous schools of Mussulman law in Algeria.

South-west of Biskra a numerous group of oases take the name of Zah Dahri, the Northern Zab, and Zab Guebli, the Southern Zab, names scarcely justified by their relative position to the whole archipelago of the Zibâns. Here also the