Puerto Rico is the fourth in size of the greater Antilles. Its first appearance to the eye of the stranger is striking and picturesque. Nature here offers herself to his contemplation clothed in the splendid vesture of tropical vegetation. The chain of mountains which intersects the island from east to west seems at first sight to form two distinct chains parallel to each other, but closer observation makes it evident that they are in reality corresponding parts of the same chain, with upland valleys and tablelands in the center, which again rise gradually and incorporate themselves with the higher ridges. The height of these mountains is lofty, if compared with those of the other Antilles. The loftiest part is that of Luguillo, or Loquillo, at the northeast extremity of the island, which measures 1,334 Castilian yards, and the highest point, denominated El Yunque, can be seen at the distance of 68 miles at sea. The summit of this ridge is almost always enveloped in mist, and when its sides are overhung by white fleecy clouds it is the certain precursor of the heavy showers which fertilize the northern coast. The soil in the center of the mountains is excellent, and the mountains themselves are susceptible of cultivation to their summits. Several towns and villages are situated among these mountains, where the inhabitants enjoy the coolness of a European spring and a pure and salubrious atmosphere. The town of Alboníto, built on a table-land about eight leagues from Ponce, on the southern coast, enjoys a delightful climate. To the north and south of this interior ridge of mountains, stretching along the seacoasts, are the fertile valleys which produce the chief wealth of the island. From the principal chain smaller ridges run north and south, forming between them innumerable valleys, fertilized by limpid streams which, descending from the mountains, empty themselves into the sea on either coast. In these valleys the majestic beauty of the palm-trees, the pleasant alternation of hill and dale, the lively verdure of the hills, compared with the deeper tints of the forest, the orange trees, especially when covered with their golden fruit, the rivers winding through the dales, the luxuriant fields of sugar-cane, corn, and rice, with here and there a house peeping through a grove of plantains, and cattle grazing in the green pasture, form altogether a landscape of rural beauty scarcely to be surpassed in any country in the world. The valleys of the north and east coasts are richest in cattle and most picturesque. The pasturage there is always verdant and luxuriant, while those of the south coast, richer in sugar, are often parched by excessive drought, which, however, does not affect their fertility, for water is found near the surface. This same alternation of rain and drought on the north and south coasts is generally observed in all the West India islands.