some of the most renowned wines and fruits of Spain are produced. The whole course of the Guadalquiver is about 340 miles and the area of its basin 21,000: the rainfall is estimated at nineteen inches. The other streams which fall into the Gulf of Cadiz--the Rio Tinto, which runs into the Huelva basin, and the Guadalete at Cadiz--are of no utility for navigation. The little port of Palos, whence Columbus sailed to discover a new world, is almost entirely blocked up by sands brought down by the former torrent. The remaining rivers of Spain--those which, descending from the great plateau, flow eastward to the Mediterranean--though all useless for navigation, are among the most productive of all its streams. Flowing through a country whose temperature exceeds that of the opposite coast of Africa; where the rainfall is either scanty, or disastrous in quantity from rare but terrible storms; and through districts in which no rain falls for years together--the waters of these rivers, skilfully applied to irrigation, have rendered what would otherwise be a barren land one of fertility unparalleled in Europe. Unlike the peasants of Castile, the cultivators of Murcia and Valencia have learnt to value the use of water in agriculture; although even there, works which were first constructed by the Moors have been allowed to fall into ruin, and are yearly becoming of less utility. Of this we shall speak more at length below. The three great rivers we have yet to notice are the Murcian Segura, and the Jucar and Guadalaviar, in Valencia. The river Segura takes its rise in the Sierra de Segura, between the Sierras of Alcaraz and Sagra. The upper part of its course is that of a mountain torrent, leaping from terrace to terrace of the mountains as it descends, until after the junction of the Mundo, which rises from a cirque in the Sierra Alcaras, like the cirque of Gavarnie in the Pyrenees, and flows through a deep ravine from the north-east. Its waters are dammed up, cut into numberless channels, and almost wholly utilized for irrigation, so that only about ten per cent of them reaches the sea; the rest are dissipated in the huertas of Murcia, Orihuela, and part of Elche. Its tributary the Sangonera loses almost all its waters in the plains of Lorca. With the little Vinalapo, almost 15,000 acres are rendered productive by the waters of these streams in one of the driest districts of Spain. The wheat of Orihuela is some of the finest in Spain; and so certain is the crop as to give rise to the proverb, "Rain or no rain, there is always wheat in Orihuela." The Segura has a course of about 217 miles, and an area of about 850 square miles; the average rainfall is estimated at about twelve inches, but the difference is very great in different years, as the district is liable to rare but most heavy and destructive floods.