Agriculture, in the best parts of Spain, is not in a flourishing condition; agricultural produce of every kind, the value of land and rents, have all fallen. Ten years ago, land in the Vega of Granada was worth from fifty to a hundred dollars per acre: at present, it does not average above sixteen. Wheat sold, ten years ago, at three dollars the _fanega_; now, it does not average, year by year, more than one dollar and a half. Rents are of course fallen in proportion; and low as rents are, they are difficult to be recovered. Upon the lands which are not capable of being irrigated, the crops are extremely precarious; and where a money-rent is required, it is next to impossible to find a cultivator for the land. As a remedy for this, proprietors of high lands are contented to receive a certain proportion of the crop--generally a fifth; and upon land subject to irrigation, a tenant is willing to pay one fourth part of the produce. Land, generally, in the Vega of Granada, returns four per cent., taxes paid; but a considerable quantity returns as much as six per cent. The return from land under tillage, is greater than that from meadow land. The estates belonging to the Duke of Wellington, lie in the lower part of the Vega, about two leagues from Granada; and all the land is capable of irrigation. His Grace’s estates return about fifteen thousand dollars per annum; his rents are paid in grain--a fixed quantity, not a proportion of the crop; a plan beginning to be pretty universally followed by other land-owners. The Duke has three hundred tenants, from which it appears that very small farms are held in the Vega of Granada; for if the whole rental be divided by three hundred, the average rent of the possessions will be but fifty dollars each. The tenants upon the Duke’s estate are thriving; they pay no taxes; and these estates are exempt from many of the heavy burthens thrown upon land. A composition of six per cent. is accepted from the Duke of Wellington, in lieu of all demands.