for their prey. We got a lot of hooks with chains attached to them, on which we put baits of raw meat. I may as well mention a fact not generally known, viz., that a shark must turn on his back before opening his capacious mouth sufficiently to feed himself; when he turns he means business, and woe to him who is within reach of the man-eater's jaws. On this occasion what we offered them was merely a piece of meat, and most ravenously did they rush, turn on their backs, and swallow it, only to find that they were securely hooked, and could not bite through the chains that were fast to the hooks--in fact, that it was all up with them. Orders had been given by the commanding officer that the sharks were not to be pulled on board, partly from the dangerous action of their tails and jaws even when half dead, partly on account of the confusion they make while floundering about the decks; so we hauled them close to the top of the water, fired a bullet into their brains and cut them loose. We killed thirty that morning in this way, some of them eight to ten feet long. The most horrid thing I know is to see, as I have done on more than one occasion, a man taken by a shark. You hear a fearful scream as the poor wretch is dragged down, and nothing remains to tell the dreadful tale excepting that the water is deeply tinged with blood on the spot where the unfortunate man disappeared. These ravenous man-eaters scent blood from an enormous distance, and their prominent upper fin, which is generally out of the water as they go along at a tremendous pace, may be seen at a great distance, and they can swim at the rate of a mile a minute. A shark somewhat reminds me of the torpedo of the present day, and in my humble opinion is much more dangerous. Once we caught a large shark. On opening him we found in his inside a watch and chain quite perfect. Could it have been that some poor wretch had been swallowed and digested, and the watch only remained as being indigestible? It is strange to see the contempt with which the black man treats a shark, the more especially when he has to do with him in shallow water. A negro takes a large knife and diving under the shark cuts its bowels open. If the water is deep the shark can go lower down than the man and so save himself, and if the nigger don't take care he will eat him; thus the black man never goes into deep water if he can help it, for he is always expecting a shark. CHAPTER V. SLAVER HUNTING. Shortly after the duel at Rio I went to England, but to be again immediately appointed to a vessel on the Brazilian station.