Both in the east (at Batna) and the west (at Ain Sefra) the mountains are traversed by railways, which, starting from Mediterranean seaports, take the traveller into the Sahara.
Batna (5279), a walled town 3350 ft.
Basset, Contes populaires berberes (1887); P. le Blanc de Prebois, Essai de contes kabyles, avec traduction en francais (Batna, 1897); H.
BISKRA, a town of Algeria, in the arrondissement of Batna, department of Constantine, 150 m.
It is connected by railway with Constantine, Batna and Biskra.