RAVI. Its name in Sanskrit is Airavati, in the local dialect Iraoti (the Irawadi of tho Ayin Akbari), which doubtless suggested the names of Hydmotes in Arrian, and Hyarotis in Strabo. Ptolemy calls this river Adria it is called Hawn Bara Baughal, and is one of the fire great streams from which the Panjab derives ita name. It rises in Kulu, on the declivity of a mountain called Banghal, and a short distance west of the Ritanka pass, about lat. 32°30' N., aud long.76° E. ; is formed of several impetuous streams, issuing from beneath large glaciers, at an elevation of 14,000 feet. About 40 utiles below ita source it is joined by two large feeders, the Budhil and the Nai or Duna. It leaves the hills at Shahpur. At Madhu pur the head-works of the Bari Doab caual draw off a large portion of its waters. Thencdonrard the river, like other Panjab streams, flows in the centre of an alluvial valley, and has been altering its course past Chumli and Bisauli. In
1870 it carried away the Tali Sahib shrine near Dera Nanak, a place of great sanctity with the Sikhs, and still threatens the town. The Ravi next passes between Sialkot and Amritaar tricts. The depth is here not more than a foot in 3farch and Apnl, swelling in June and September to 18 or 20 feet. Entering the district of Lahore, it runs within one mile of Lahore city. Finally, it falls into the Chenab (Chinab), lat.30° 31' N., and long. 71° 51' 20" E., after a total length of about 450 miles followiug its windings. It receives AA affluents the Nai, 20 ; Sane, 3G; Chakki, 50 miles. About 22,000 square milea are drained. It has a tortuous course, and is fordable in most places for eight months of the year.—felp.