_Emblica officinalis_, and these only below an altitude of 4000 feet; above this, the lemon-grass is superseded by harder and more wiry species; but the earth is still the same, a mixture of decomposed quartz largely impregnated with oxide of iron, but wanting the phosphates and other salts which are essential to highly organised vegetation.[2] The extent of the patena land is enormous in Ceylon, amounting to millions of acres; and it is to be hoped that the complaints which have hitherto been made by the experimental cultivators of coffee in the Kandyan provinces may hereafter prove exaggerated, and that much that has been attributed to the poverty of the soil may eventually be traced to deficiency of skill on the part of the early planters. [Footnote 1: Since the above was written, attempts have been made, chiefly by natives to plant coffee on patena land. The result is a conviction that the cultivation is practicable, by the use of manures from the beginning; whereas forest land is capable, for three or four years at least, of yielding coffee without any artificial enrichment of the soil.] [Footnote 2: HUMBOLDT is disposed to ascribe the absence of trees in the vast grassy plains of South America, to "the destructive custom of setting fire to the woods, when the natives want to convert the soil into pasture: when during the lapse of centuries grasses and plants have covered the surface with a carpet, the seeds of trees can no longer germinate and fix themselves in the earth, although birds and winds carry them continually from the distant forests into the Savannahs."--_Narrative_, vol. i. ch. vi. p. 242.] The natives in the same lofty localities find no deficient returns in the crops of rice, which they raise in the ravines and hollows, into which the earth from above has been washed by the periodical rains; but the cultivation of rice is so entirely dependent on the presence of water, that no inference can be fairly drawn as to the quality of the soil from the abundance of its harvest. The fields on which rice is grown in these mountains form one of the most picturesque and beautiful objects in the country of the Kandyans. Selecting an angular recess where two hills converge, they construct a series of terraces, raised stage above stage, and retiring as they ascend along the slope of the acclivity, up which they are carried as high as the soil extends.[1] Each terrace is furnished with a low ledge in front, behind which the requisite depth of water is retained during the germination of the seed, and what is superfluous is permitted to trickle down to the one below it. In order to carry on this peculiar cultivation the streams are led along the level of the hills, often from a distance of many miles, with a skill and perseverance for which the natives of these mountains have attained a great renown.