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 notable being two of 50 ft. over the Litani, and two of 60 ft. over the Barada; these are girder bridges. There are five tunnels, but the length of the longest is not more than 400 yds.

(ii) Rayak—Aleppo. The ruling gradient is 1 in 80. After the 48th kilometre from Rayak there are several bridges, including two of three 20 ft. girders, and at the 98th km. there is a 50 ft. girder bridge. Further. on there are two large bridges over the Orontes: one, near Telbise, has a central span of 80 ft. between two 30 ft. arches (while beyond it is a four-span girder bridge over a tributary stream); the other, at Hama, is 165 ft. long.

(iii) Tripoli—Homs. The steepest gradient is 1 in 50, and the chief bridge that over the Orontes. 2. (b) Chemin de fer de la Palestine (Jaffa-Jerusalem). There is a sharp curve at Ludd station, and others after Deir Aban. The steepest gradient is 1 in 62. Over the Wadi Surar there is a girder bridge of 50 ft. beyond Sayad, and two others of 100 ft., beyond Deir Aban.

3. Hejaz Railway.

(i) Damascus—Ma'an. There is insufficient ballast on several sections. Gradients of 1 in 45 occur, one coinciding with a sharp curve of 100 m. radius at the tunnel (154 yds. long) south of Amman, where derailments have taken place; there is also a sharp curved gradient after Khan Sebib (295 km.). The more important viaducts and bridges are: one of three 20 ft. arches over Nahr el-Awaj, one of five 20 ft. arches after Deraa, two of six 20 ft. arches over Wadi Zerka (at 207 km. and 220 km.), the Amman viaduct of ten 25 ft. arches, one of six 20 ft. arches after Jise, four of six 25 ft. arches after Khan Sebib, and another similar one at 348 km.

(ii) Haifa—Deraa. There is a masonry bridge of six 20 ft. arches over Nahr el-Mukatta, one of three 25 ft. arches over the Nazareth road, and one of six 40 ft. arches over the Jordan. From this point a long