We walked to a stream, which flows at the base of the retiring sand-cliffs, and nourishes a dense and richly-varied jungle, producing many plants, as beautiful _Acanthaceae,_ Indian horse-chesnut, loaded with white racemes of flowers, gay _Convolvuli,_ laurels, terrestrial and parasitic _Orchideae, Dillenia,_ casting its enormous flowers as big as two fists, pepper, figs, and, in strange association with these, a hawthorn, and the yellow-flowered Indian strawberry, which ascends 7,500 feet on the mountains, and _Hodgsonia,_ a new _Cucurbitaceous_ genus, clinging in profusion to the trees, and also found 5000 feet high on the mountains. In the evening we rode into the forest (which was dry and very unproductive), and thence along the river-banks, through _Acacia Catechu,_ belted by _Sissoo,_ which often fringes the stream, always occupying the lowest flats. The foliage at this season is brilliantly green; and as the evening advanced, a yellow convolvulus burst into flower like magic, adorning the bushes over which it climbed. It rained on the following morning; after which we left for the exit of the Teesta, proceeding northwards, sometimes through a dense forest of Sal timber, sometimes dipping into marshy depressions, or riding through grassy savannahs, breast-high. The coolness of the atmosphere was delicious, and the beauty of the jungle seemed to increase the further we penetrated these primaeval forests. Eight miles from Rummai we came on a small river from the mountains, with a Cooch village close by, inhabited during the dry season by timber-cutters from Jeelpigoree it is situated upon a very rich black soil, covered with _Saccharum_ and various gigantic grasses, but no bamboo. These long grasses replace the Sal, of which we did not see one good tree. We here mounted the elephants, and proceeded several miles through the prairie, till we again struck upon the high Sal forest-bank, continuous with that of Rummai and Rangamally, but much loftier: it formed one of many terraces which stretch along the foot of the hills, from Punkabaree to the Teesta, but of which none are said to occur for eight miles eastwards along the Bhotan Dooars: if true, this is probably due in part to the alteration of the course of the Teesta, which is gradually working to the westward, and cutting away these lofty banks.