the coldest and purest water possible--becomes known as the Jerahi, and carries a large body of water as far as Fellahiyeh or Dorak. Near Dorak the waters of the Jerahi are drawn off into a number of canals, and the river is thus greatly diminished; but still the stream struggles on, and proceeds by a southerly course towards the Persian Gulf, which it enters near Gadi in long. 48° 52’. The course of the Jerahi, exclusively of the smaller windings, is about equal in length to that of the Tab or Hindyan. In volume, before its dispersion, it is considerably greater than that river. It has a breadth of about a hundred yards before it reaches Babahan, and is navigable for boats almost from its junction with the Abi Zard. Its size is, however, greatly reduced in its lower course, and travellers who skirt the coast regard the Tab as the more important river. The Kuran is a river very much exceeding in size both the Tab and the Jerahi. It is formed by the junction of two large streams--the Dizful river and the Kuran proper, or river of Shuster. Of these the Shuster stream is the more eastern. It rises in the Zarduh Kuh, or “Yellow Mountain,” in lat. 32°, long. 51°, almost opposite to the river Isfahan. From its source it is a large stream. Its direction is at first to the southeast, but after a while it sweeps round and runs considerably north of west; and this course it pursues through the mountains, receiving tributaries of importance from both sides, till, near Akhili, it turns round to the south, and, cutting at a right angle the outermost of the Zagros ranges, flows down with a course S.W. by S. nearly to Sinister, where, in consequence of a bund or dam thrown across it, it bifurcates, and passes in two streams to the right and to the left of the town. The right branch, which earned commonly about two thirds of the water, proceeds by a tortuous course of nearly forty miles, in a direction a very little west of south, to its junction with the Dizful stream, which takes place about two miles north of the little town of Bandi-kir. Just below that town the left branch, called at present Abi-Gargar, which has made a considerable bend to the east, rejoins the main stream, which thenceforth flows in a single channel. The course of the Kuran from its source to its junction with the Dizful branch, including main windings, is about 210 miles. The Dizful. branch rises from two sources, nearly a degree apart, in lat. 33° 30’. These streams run respectively south-east and south-west, a distance of forty miles, to their junction near Bahrein, whence their united waters flow in a tortuous course, with a general direction of south, for above a hundred miles to the outer barrier of Zagros, which they penetrate near the Diz fort, through a succession of chasms and gorges. The course of the stream from this point is south-west through the hills and across the plain, past Dizful, to the place where it receives the Beladrud from the west, when it