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Rh with fire from burning oil exudations and asphalt springs. The tidal waves which often accompany such disturbances have been especially destructive along the Phoenician coast, with Tyre and Sidon the principal victims. The last severe earthquake in northern Syria occurred in 1822 and converted Aleppo, among other cities, into a heap of ruins, destroying tens of thousands of human lives. The last in Palestine took place in 1837, utterly demolishing Safad.

The eastern range constitutes the fourth strip in the Syrian relief, but is absent north of Horns. The range called Anti-Lebanon rises opposite Mount Lebanon and almost equals it in length and height; it is divided by the plateau and gorge of the Barada river into a northern part, on the western flank of which there is hardly a village, and a southern part which includes Mount Hermon, one of the highest and most majestic peaks of Syria, with many flourishing villages on its western slope. Largely because its rainfall is lower and its vegetation sparser, Anti-Lebanon has a more scattered and less progressive population than that of Mount Lebanon.

Rising in a rich upland valley, the Barada flows east, reclaims for Syria a large portion of what otherwise would have been a desert, and creates Damascus, an oasis outpost of civilization. After irrigating the celebrated orchards called al-Ghutah, the river divides into five channels which serve the streets and homes of the ancient metropolis. The present Damascus water system derives from one installed at the behest of the Umayyad caliphs.

South and east of Damascus the eastern range is represented by the Hawran plateau, predominantly volcanic with basalt rocks and rich soil. To the South rises the mountain called Jabal al-Duruz, the occupation of which by the Druzes is a comparatively recent event, dating from the early eighteenth century. Although it has no trees and very few springs, the Hawran plateau bears abundant wheat and provides good pasture. The soil consists of disintegrated Rh