Dolphins move in companies of from four or five to twenty or more. They chase the flying-fish, that with astonishing rapidity, after having escaped their sharp pursuer a while in the water, emerge, and go through the air with the swiftness of an arrow, sometimes in a straight course, sometimes forming part of a circle; yet frequently the whole is unavailing, for the Dolphin bounds from the sea in leaps of fifteen or twenty feet, and so moves rapidly towards his prey, and the little fish falls, to be swallowed by his antagonist. You must not suppose, however, that the Dolphin moves through the seas without risk or danger; he, as well as others has vigilant and powerful enemies. One is the Barracouta, in shape much like a Pike, growing sometimes to a large size; one of these cut off upwards of a foot of a Dolphin's tail, as if done with an axe, as the Dolphin made for a baited hook; and I may say we about divided the bounty. There is a degree of sympathy existing between Dolphins quite remarkable; the moment one of them is hooked or grained, all those in company immediately make towards him, and remain close to him till the unfortunate is hauled on board, then they move off and will rarely bite. The skin of the fish is a tissue of small scales, softer in their substance than is generally the case in scaley fishes of such size; the skin is tough. We also caught a Porpoise about seven feet in length. This was accomplished during the night, when the moon gave me a full view of all that happened. The fish, contrary to custom, was _grained_ instead of harpooned, but grained in such a way and so effectually, through the forehead, that it was then held and suffered to flounce and beat about the bow of the ship, until the man who had first speared it gave the line holding the grain to our captain, slid along the bobstay with a rope, then, after some little time and perhaps some difficulty, the fish was secured immediately about its tail, and hoisted with that part upwards. Arrived at the deck it gave a deep groan, much like the last from a dying hog, flapped heavily once or twice, and died. I had never before examined one of these closely, and the duck-bill-like snout, and the curious disposition of the tail, with the body, were new and interesting matters of observation to me. The large, sleek, black body, the quantity of warm, black blood issuing from the wound, the blowing apertures placed over the forehead,--all attracted my attention. I requested it might be untouched till the next morning, and my wish was granted. On opening it the intestines were still warm (say eight hours after death), and resembled very much those of a hog. The paunch contained several cuttle-fish partly decayed. The flesh was removed from the skeleton and left the central bone supported on its sides by two horizontal, and one perpendicular bone, giving it the appearance of a four-edged cutting instrument; the lower jaw, or as I