The most northern ridge, which is probably the highest, as it is nowhere penetrated by rivers, approaches Hindustan only at the lake Manasarawar, where the remarkable peak called Kailasa may be considered as its centre. This peak may perhaps be visible from the southward, although there exists no certainty of its being so; but the portions of this ridge, which extend west and east from Kailasa, bordering on the north, the upper part of the Indus, and Brahmaputra rivers, are certainly invisible from every part of Hindustan, and very little is known concerning them. The middle ridge of Himaleh, which separates Thibet from Hindustan, taking this word in its most extended sense as including Kasmir, the dominions of Gorkha, etc. extends probably to the Chinese Sea along the northern frontier of the provinces of Quangsi and Quantong, lowering gradually as it advances to the east. Although, so far as connected with Hindustan, it is of enormous height, yet it is perforated by many rivers, such as the Indus, Sutluj or Satrudra, Karanali or Sarayu, Gandaki, Arun, Brahmaputra, etc. Mr Colebrooke, indeed, {91} doubts of any rivers crossing this chain; for he says, “It is presumable that all the tributary streams of the Ganges, including the Sarayu, (whether its alleged source in the Manasarawar lake be credited or discredited,) and the Yamuna, rise on the southern side of the Himaliya;” and again he says, “From the western side of the mountains, after the range, taking a sweep to the north, assumes a new direction in the line of the meridian, arise streams tributary to the Indus, or perhaps the Indus itself.” On this I would remark, that all the rivers I have enumerated, no doubt, arise from Thibet, and penetrate this chain. If, indeed, the Sarayu, or rather Karnali, arises from the lake Manasarawar, which is undoubtedly on the north side of the Himaleh ridge, how could Mr Colebrooke’s position be maintained? He is also probably wrong in supposing that the central Himaliya ridge bends to the north. There is rather reason to think that it passes straight west, after it is penetrated by the Indus, and reaches to the Hindoo Coosh of the Honourable Mr Elphinston; while it is the western extremity of the northern ridge, first mentioned, that turns to the north, and separates Samarkhand and Bokhara from Kashgar. These rivers, which penetrate the central Himaliya ridge, do not appear to me to arise from any remarkable ridge of mountains, but spring from detached eminences on the elevated country of Thibet, and pass through interruptions or chasms in the central ridge of Emodus. It is very possible, that Colonel Kirkpatrick saw this ridge from Lama Dangra; but I am very doubtful, whether any part of it is visible from the plains of Hindustan; or, at least, that any of the more distinguished peaks visible from thence belong to it. All the peaks measured by Colonel Crawford were, no doubt, to the southward of