The cord by which it was held, being much too weak, soon broke, and off dashed the wounded fish, right in the wind's eye, at a prodigious rate, with the staff erect on its back, like a signal-post.

The poor wretch was instantly accompanied, or pursued, by myriads of his own species, whose instinct, it is said, teaches them to follow any track of blood, and even to devour their unfortunate fellow-fish.

I rather doubt the fact of their cannibalism, but am certain that, whenever a porpoise is struck and escapes, he is followed by all the others, and the ship is deserted by the shoal in a few seconds.

In the instance just mentioned, the grains with which the porpoise was struck had been got ready for spearing a dolphin; but the man in whose hands it happened to be, not being an experienced harpooneer, could not resist the opportunity of darting his weapon into the first fish that offered a fair mark.
The dolphin, the bonito, and the albacore, are sometimes caught with the grains, but generally by means of lines baited either with bits of tin, or with pieces of the flying-fish, when any are to be had.

In fine weather, especially between the tropics, when the whole surface of the sea is often covered with them, a dozen lines are hung from the jib-boom end and spritsail yard, all so arranged, that when the ship sends forward, the hook, with its glittering bait, barely touches the water, but rises from it when the ship is raised up by the swell.