"Both passengers and crew, all of us that could swim, gave wistful looks now and then alongside at the water, hot as it seemed, for a bathe; just floating up, as it were, with the mere huge size of it, under a dazzle of light, and so blue and smooth you couldn't see a hair's-breadth below; while, a bit off, the face of it and the very air appeared to dance and quiver like little streams of glass. However, all thoughts of bathing were put out of your head when you saw the black three-cornered affair, with a rake aft, somewhat like the end of a scythe, that went steering slowly round us; then cruising hither and thither, till its infernal horn was as dry as the deck; and at times driving straight off, as if it ran in a groove through the level surface; when back again it came from the other side, creeping lazily towards us, till it sank with a light _tip_, and a circle or two on the blue water. The hook and chain were hanging up and down over the taffrail, with the piece of rank pork looking green in the shadow near the rudder, where you read the white figures of her draught as plain as in dock; but the shark, a fifteen-feet customer, if he was an inch, was too knowing to have touched it. "'Pity he's gone, Collins,' said Ford to me, after we had watched him at last out of sight; 'wasn't there any plan of catching him, I wonder! Now we shall have a bathe though, at any rate.' 'Gone?' said I, 'he won't leave us in a hurry, if we don't leave _him_!' 'Poh, man!' said Ford, 'I tell you he's tired out and gone away!' Five minutes after Ford was leaning over the quarter and wiping his face, while he fanned himself with his straw hat, which fell out of his hand into the water. He had got over into the mizzen-chains to throw a line round it, when he gave a loud shriek, and jumped in-board again. Two or three fathoms of green came up from the keel, balancing on a pair of broad fins under Ford's hat, and a big round snout touched it; then a dozen feet of white belly gleamed in the water, the hat gave a gulp as it was drawn down, and a few small air-bells rose to the top. 'He prefers some flavours to others, you see, Ford,' said I. ''Tis the second hat I've seen you lose: I hope your head won't be in the _third_; but you mariners, you see----' However, Ford had bolted to his cabin.