CANNON 



Fig. 1 1 . Near view of the Daya of Tilrempt. The fortified stage station, bordj, and a nomad camp are to be 

 seen. The Rattened, level, lower surface of the trees is the effect of greizing, mainly by camels. 



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Fig. 12. Jujube (Zizyphus) shrubs and betoum (Pistacia) al the Daya of Tilrempl. 



