Page:Africa by Élisée Reclus, Volume 2.djvu/357

 the Roman Portus Magnus, Arzeu has of late ycurs acquired fresh importance os the terminus of tho railway which taps the alfa districts of the upland plateaux. Besides alfa, it exports salt, chlorine, soda, and other chemicals, either collected or

manufactured on the banks of the saline Lake El-Melah, in which basin about two million tons of salt are yearly deposited. Some Roman ruins are scattered along the beach, at one spot numerous enough to take the name of "Old Arzeu." In