CANNON 



PLATE 4 



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\JiJ* ■:."■"•-" ^J& 



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

 seen. The flattened, level, lower surface of the trees is the effect of grazing, mainly by camels. 



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



