THE WHITE WHALE, or Beluga, is included among the dolphins. The body is white, tinged with yellow, or rose-colour, and its proportions are more agreeable than those of most of the cetacea. It measures from twelve to eighteen feet in length. White Whales are gregarious, assembling in flocks or herds, and playing about with rapid and graceful movements. The female has two young ones at a time, over which she watches with the greatest apparent affection. They follow all her movements, and do not quit her till they are nearly full grown. This Whale is generally confined to the northern latitudes, though one was taken in the Firth of Forth in 1815. The oil is of excellent quality, and the flesh eats like beef. According to some writers the flesh, when pickled with vinegar and salt, is as well tasted as pork; and thus the body, which is generally thrown away when the sailors have cut off the blubber, might be used by them as food. The internal membranes are used by the Greenlanders for windows, and the sinews for thread, and the fins and tail, when properly prepared, are said by some of the old writers to be good eating. [Illustration] [Illustration: THE PORPOISE. (_Phocæna vulgaris._)] THE PORPOISE is one of the cetacea, and nearly allied to the dolphin, but it has not the beaked snout of that animal. The length of the Porpoise, from the tip of the snout to the end of the tail, is from four to eight feet, and its girth about two feet and a half. The figure of the whole body is conical; the colour of the back is deep blue, inclining to shining black; the sides are grey, becoming white below. The tail is crescent-shaped. There are only three fins, one on the back, and one on each shoulder. The eyes are very small. When the flesh is cut up, it looks very much like pork; but although it was once considered a sumptuous article of food, and is said to have been occasionally introduced at the tables of the old English nobility, it certainly has a disagreeable flavour. Porpoises live on small fish, and appear generally in large shoals, particularly in the mackerel and herring seasons, at which time they do very great damage to fishermen, by breaking and destroying the nets to get at their prey. Their motion in the water is a kind of circular leap; they dive deep, but soon again rise up in order to breathe. They are so eager in the pursuit of their prey, that they sometimes ascend large rivers, and have even been seen above Westminster Bridge. They have no gills, and blow out the water with a loud noise, which in calm weather may be heard at a great distance. They are seen nearly in all seas, and are very common upon the British coasts, where they sport with great activity, chiefly at the approach of a squall.