There is a bluff mountain to the north of Candahar, the disintegration of which is so rapid, that it is evident from the slope of the debris, it will in time bury the original structures.
The hills forming the ridge separating Arghandab from Candahar, as well as all those rugged looking ones about Candahar, are of limestone, they are much worn by the weather, and full of holes. They are very barren, the only shrubby vegetation of any size being Ficus, which may be the stock of the Ungoor, as it resembles it a good deal, Centaurea spinosa, Paederiae 2, Echinops, Pommereulla, one to two, other Graminae, lemon-grass, Dianthus, Peganum, Cheiranthus as before, Sedum rosaceum, Gnaphalium, Hyoceyamus, Didymocarpeae, Gnidia, etc.
The Arghandab is a good sized river, with channel subdivided: its stream is rapid and fordable; no large boulders occur in its bed; the temperature of its water is moderate.
The fish are a Cyprinus and a Barbus, or Oreinus with small scales, thick leathery mouth, and cirrhi; a Loach of largish size, flat head, reddish, with conspicuous brownish mottlings, and a Silurus.
The hills forming the northern boundary of the valley are picturesque, and of several series, and perhaps the subordinate valleys are not so large and fruitful in this direction.
Between Arghandab and Candahar, two ranges occur; one interrupted: the other nearer Candahar has first to be surmounted at a low pass; the pass is short, rugged and impassable for guns. The inner ridge is much closer to the cultivated part of the valley than the northern range.
Between it and the Arghandab, at least six cuts occur: these are met with generally in threes, and are at different elevations; the inner one being close at the foot of the hills; great labour must have been required to make them. Numerous villages, some with flat roofed houses occur.
Arundo, Salsola, Plantago, P. coronopoid, Cnicus, Juncus, Veronica exallata, Santalacea, Mentha, Lactucoides, Chenopod. 2-3, Panicum, Samolus, Ceratophyllum; Salix occurs near the river; apricots, apples, pomegranates, damsons or plums, bullaces, pears, mulberries and raspberries in the gardens.
The shingle found about all the hills in Khorassan, can scarcely be derived from any source but disintegration, it slopes too gradually and uniformly for upheavement. If my idea is correct, the mountains will at some period be buried in their own debris, of course inspection of the shingle will at once point out whether this is true or not, more especially in all those places where the rocks are of uniform structure. There is a curious desert to the south and southwest of Candahar, elevated a good deal above the valley, quite bare, and stretching a long way to the westward: it is seen for forty miles along the Girishk road.