The horse has been known as man's companion and helper from the earliest times. In Greek mythology horses play a very important part, as every one knows who has read the stories of Arion and the winged horse Pegasus. The most famous horse in history probably was Bucephalus (Bull Head), who belonged to Alexander the Great. Alexander was the son of Philip, king of Macedonia.

When the boy was about thirteen years of age, there was offered for sale to his father a superb white horse with a black mark, like a bull's head, on his forehead. His price was twenty thousand dollars. He was brought before the king, but no one was able to mount him. Philip was angry and was about to send the horse away when Alexander begged to be allowed to try.

He went up quietly to Bucephalus and stroked him for a few minutes with a steady, careful hand. As he did so he noticed that the horse was afraid of his own shadow dancing on the grass before him.

Turning the frightened animal with his face to the sun, the boy leaped lightly on his back, and using every means to soothe him, soon brought him under complete control.

Bucephalus became Alexander's constant companion. The horse was once taken prisoner by the barbarians against whom Alexander was fighting, but the concern shown by the great soldier was so serious that his favorite was promptly restored to him.

[Illustration: A NORMAN SIRE. By Rosa Bonheur.]

This famous horse died when he was thirty years old from wounds received on the field of battle. Alexander mourned his death as that of a dear friend and built a city as a monument to his memory.

Swift and Spurred On were horses that belonged to two Roman emperors. These horses were fed on almonds and raisins; they had ivory mangers and marble stalls; and one of them drank wine out of a golden pail. But I am sure they were too sensible to like such a life and would have preferred a handful of fresh grass and a drink of cold water.

There are many other horses whose names are known in history. There was Copenhagen, the Duke of Wellington's favorite charger, that carried him for ten hours through the battle of Waterloo. Copenhagen lived to a peaceful and honored old age, but he had a fancy for sponge cake and chocolate creams, and he died at last from eating too many sweets.

Then there was Roan Barbary, Richard the Second's favorite, and Agnes, who carried Mary, Queen of Scots. Washington's big white horse, whose picture you have often seen, was carefully tended and cherished as long as he lived.

In art the horse is the emblem of courage and generosity, and as we know him to-day he is not lacking in these noble traits.