At one, P.M., on the 10th of September, we got underway, and stood over for Charles Island, where we anchored at six, in Essex Bay. Rock Dismal, so called by Commodore Porter, is an excellent land mark, and seems to have been appropriately named. It rises to the eastward of Essex Bay, in sharp crags of fifty to a hundred feet high. A few solitary bushes constitute all its vegetation. In approaching Essex Bay, and at its entrance, we were alarmed several times by a strong ripple, but in casting the lead found no bottom with ten fathoms of line. At Essex Bay, is the celebrated post-office of the whalers, to which Commodore Porter resorted several times during his cruise for information. We found a letter there left by a whaler who had visited Charles Island for a supply of turtle. He was last from the river Tumbez, where one of his crew had caught a fever, of which he died. Two others lost their way in the mountains of Charles Island, where, after wandering about for a considerable time, one of them complained to his companion of a head-ache, and soon after sat down and died. The other found his way to the ship after a great deal of suffering. Charles Island is high and mountainous, and like Hood's, is covered with a thin growth of bushes. At the distance of a mile from the beach there is a small spring of water, to which there is a footpath over the crags and hills, worn by visiters in search of turtle, a scanty supply of which can only be obtained with great labour. The residence of Pat, the Irishman, in this lone and dreary place, for a number of years, has made it an object of curiosity to all who visit the island. Here he planted his potatoes and pumpkins, and raised his chickens; administering the government of his island with despotic sway, for Pat was a monarch although he pillowed his head upon a rock, and reposed his rude limbs on a bed made of bushes. The story is known to all who have read Commodore Porter's journal, in which he gives an account of Pat's residence on this island, and of his possessing himself of the person and services of a black man belonging to a whale ship, who had strayed too far from his companions, and whom Pat held in durance for a long time.