Though in the middle of winter, it was not very cold. A fresh breeze was blowing towards the shore, which ruffled the surface of the water, making it rise in little waves. A little way out, the waves rose and fell without breaking, but, as they came near the shore, they curled over in long white lines of foam, and chased one another up the beach, making a dashing noise, which never ceased. Here and there, where rough rocks jutted out into the sea, the waves rose much higher, and dashed over them with such violence, that no one could stand with safety at their edges. Sea-gulls, some nearly white, and others dark grey, were flying about, sometimes dipping into the water, and rising again as if they had stooped to pick up something. Mr. Miller said he supposed they were feeding on bits of meat or fish, which had been thrown over from the ships. In summer, they often fly about in large flocks, darting down in the same way; but then they are generally employed in real fishing, and a large flock marks the place where a shoal of pilchards, or herrings, or sprats, is swimming near the surface. Then, too, they are of great use to the fisherman, who is taught by them where to throw over his nets with the best chance of a catch. In winter, these fish keep in deep water, so that the gulls, who cannot dive, are obliged to find some other kind of food. There are several different kinds of gulls, but all that were seen to-day were of the same sort, the only difference being that the young birds had darker plumage than the others. At some distance from shore, Mr. Miller pointed out to Henry something black in the water, but, before he had time to look, it was gone. In about a minute’s time, the head and long neck of a bird suddenly showed themselves, turned from side to side with a quick jerk, and disappeared again. “That is a cormorant,” said Mr. Miller; “a bird who, at this season, has a much better chance of catching fish than a gull, for he can not only swim but dive, and stay under water for a very long time. A little does not satisfy him, but when he _has_ had enough, he flies along close to the water, until he has found a safe rock, where he spreads his wings to dry in the sun or wind, and then goes a fishing again.” [Illustration: CORMORANT.] Henry recollected having been once told not to eat like a cormorant; and though he did not then know what a cormorant was, he now began to suspect that boys got that name when they ate so much bread-and-butter that they were fit for nothing afterwards, but to lie basking in the sun. He had heard that sea-water was salt, but had never had an opportunity of knowing it for himself; so when his papa told him to put into his mouth a wet pebble, which he had just picked up, he soon spat it out, making a very wry face. “Where does all the salt come from which gives a taste to so much water?” was a natural question, but not a very easy one to answer.