The elevation of Wandla is only 11,000 feet, and the heat of the sun was very oppressive. On the latter part of the march, many plants of the Indus valley which were familiar to me from my journey of the year before, but which I had not seen during my present visit to Tibet, made their appearance. Echinops and Nepeta floccosa, Mulgedium Tataricum, a large and handsome yellow Corydalis, Capparis, and numerous Chenopodiaceæ were abundant. The leaves of Tussilago Farfara were common along the water-courses; in the corn-fields a little viscid Cerastium (Lepyrodiclis) was only too plentiful. By far the most conspicuous plant was the rose (R. Webbiana), which, in the rich and well-watered soil of the cultivated plain, grew most luxuriantly, forming dense almost spherical bushes, many of which were at least fifteen feet high, as much in diameter, and bushy down to the ground. They were now in full bloom, and the foliage was almost entirely concealed by the profusion of bright red flowers.

I was obliged to remain a day at Wandla, owing to the serious illness of one of my servants, who, though a native of a mountainous country, had suffered much more on the high passes than any of the inhabitants of the plains of India, and was now so much exhausted as to be unable to move. On the 7th, however, I proceeded towards the Indus, not a little glad to be at last within a day's journey of that river, as I was considerably later than I had originally calculated, not having made allowance for the very rugged nature of the country between Zanskar and Le.

LAMAYURU.
July, 1848.

The valley of Wandla, I was informed, contracted again into a rocky ravine a very little way below the village. This ravine was not quite impracticable, but the stream had to be forded very frequently; and as it was at least four feet deep, I was recommended to follow another route, a little more circuitous, but free of difficulty. For the first mile I proceeded up an open valley, which joined at a right angle from the west that which I had descended on the 5th. I then turned to the right up a very sterile ravine, with much saline efflorescence; in a few places a small streamlet trickled among the stones, but for the first part the channel was quite dry, the water filtering underneath the gravel. The sides of the ravine were bare and shingly and without vegetation, except at the entrance, where a Corydalis, thistle, and one or two other plants occurred sparingly. On the most stony parts Güldenstädtia cuneata, Benth., was common, and here and there in the gravelly channel was a bush of Myricaria (not M. elegans, but a smaller and much less handsome species). After a gentle ascent of about two miles, I gained the head of the ravine, and crossing a stony ridge not high enough for alpine plants, descended another valley on its north side, which, though at first if possible more barren than the ascent, soon became somewhat green with willow-bushes and the ordinary plants. After descending perhaps a thousand feet, I reached an extensive tract of cultivation, just above which, in another ravine, lay the village and monastery of Lamayuru, of which a circumstantial account has been given by Moorcroft[20]. At this place, I joined the road from Kashmir by Dras to Ladak, which has been repeatedly traversed by European travellers, and is particularly described in Moorcroft's Travels.

INDUS VALLEY.
July, 1848.

KALATZE.
July, 1848.

Below this village the valley contracted, and was for some distance full of immense masses of lacustrine clay; lower down it became a narrow rocky ravine. The road descended with great rapidity till I reached the Wandla stream, which I had left in the morning; it was afterwards less steep, following the banks of that river through a winding rocky valley to its junction with the Indus, which was not seen till close at hand. The valley of the Indus, where I entered it, was very barren, with bare rugged mountains on both sides. A stony platform of alluvial conglomerate usually intervened between the mountains and the river, over which my road lay for about three miles up the river, to a good wooden bridge, defended on the north side by a small, very indifferent fort. By this bridge I crossed to the right side of the river, and a mile further on reached the village of Kalatze (or Kalsi, as it is commonly pronounced), at which I encamped.

In the lower part of the Wandla ravine, the clay-slate rock became much indurated, and alternated with a very hard conglomerate, the matrix of which had a semi-fused appearance, while the pebbles which it contained were all rounded. This rock is very similar to, and probably identical with, that of the Giah ravine north of the Tunglung pass, and of the upper Indus. A modern conglomerate, with an indurated sandy and calcareous matrix, in horizontal beds, rested unconformably upon the more ancient rock, but afforded no indications by which I could form an opinion of its exact age.

VEGETATION OF VALLEY OF INDUS.
July, 1848.

The elevation of my tent at Kalatze I made to be 10,400 feet; but I was encamped at the highest part of the village, and the bed of the river was not much above 10,000 feet. The cultivated lands, which are very extensive, lie on the top of a thick platform of alluvium, through which the river has excavated a deep broad channel. The lands of the village slope gradually from the base of the mountain to the edge of the cliff overhanging the river, and the fields are made into level terraces by walls of stones from three to six feet in height. Numerous streams of water are conducted through the fields for irrigation, upon which cultivation in Tibet entirely depends. The crops had an appearance of great luxuriance: they consisted of wheat and barley (both in full ear, the latter even beginning to turn yellow), buckwheat, peas, and oil-seed (Brassica Napus). Fruit-trees were abundant, chiefly apricots; but there was no deficiency of apples, pears, walnuts, and mulberries. Along the water-courses and on the edges of the fields grew plenty of wild plants, many the same as occur everywhere in Tibet, but, from the diminished elevation, numerous novelties were observed. A Clematis, with dingy brownish-orange flowers, straggled over bushes; a shrubby Ballota and a Perowskia covered the walls; Iris, Capsella, Veronica biloba and agrestis, Lamium amplexicaule, Mentha, Potentillæ, Plantago Asiatica, Thalictrum, and numerous other plants grew along the water-courses; while in the fields among the corn the weeds were much the same as are common in Europe and in the plains of India in the cold season; Vaccaria, Silene conoidea, Stellaria media, Malva rotundifolia, and Convolvulus arvensis being plentiful.