At length, after a wearisome ride of several hours, we descended suddenly into the most fertile and luxuriant valley I ever beheld, and which seemed to extend a distance of some miles. A mountain brook flowed down the midst, on the banks of which numerous scattered and picturesque cottages appeared. On either side the ground was covered with the green carpet of Nature in the spring of the year. Everywhere, except in this smiling valley, we saw nothing but the aridity of summer, and the desolation caused by a scorching tropical sun. But here -- how very different! How sudden, how magical was the change! Every species of vegetable grew here in finest luxuriance. Melons of every variety, pine-apples, sweet potatoes, plantains, and bananas, with their broad and drooping leaves of freshest green and rich purple flower, and ripe yellow fruit. Orange-trees, cocoa-nut trees, limes -- the fig, the vine, the citron, the pomegranate, and numerous others, grateful to the weary sight, and bearing precious stores amid their branches, combined to give the appearance of wealth and plenty to this happy valley. It was not, however, destined to be entered by us without a fierce combat for precedence between two of our steeds. The animal whom it was the evil lot of Meliboeus to bestride, suddenly threw back its ears, and darted madly upon the doctor's quadruped, which, on its side, manifested no reluctance to the fight. Dreadful was the scene; the furious donkeys nearing and striking with their fore-feet, and biting each other about the head and neck without the smallest feeling of compunction or remorse; the two guides shrieking and swearing in Portuguese at the donkeys and each other, and striking right and left with their long staves, perfectly indifferent as to whom they hit; the unhappy riders, furious with fright and chagrin, shouting in English to the belligerents of both classes to "keep off!" The screams of two women, who were carrying water in the neighbourhood, enhanced by the barking of a terrified cur, that ran blindly hither and thither with its tail between its legs, in a state of frantic excitement -- altogether produced a tableau of the most spirited description. Peace was at length restored, and we all dismounted from our saddles with fully as much satisfaction as we had experienced when vaulting into them. There is little more to say about the valley of Trinidad. The cottagers who supply the town of Porto Praya with fruits and vegetables are extremely poor, and very uncleanly and untidy in their houses and habits. We had intended to spend the night with them, but the appearance of the accommodations determined us to return to our inn, in spite of the friendly and disinterested advice of our guides. St. Jago abounds with soldiers and priests; the former of whom are chiefly convicts from Lisbon, condemned to serve here in the ranks.