One day Rollo saw a policeman taking a prisoner to the station. It was a boy about thirteen years old. The policeman walked very fast, and the boy ran along by his side. The policeman took hold of the collar of the boy's jacket behind with his hand, and so conducted him along. There was a crowd of young men and boys following, some walking fast and some running, to see what would become of the prisoner.

Rollo was at first inclined to join this party, in order that he might see too; but Mr. George thought it would be better not to do so. Rollo then began to pity the poor prisoner boy very much, in view of the expression of dreadful terror and distress which his countenance had worn when he passed by him, and he was very anxious to know what he had been doing. He accordingly

stopped to ask an orange woman, who stood with a basket of oranges near a post at a corner.

THE ARREST.

"He has been beating and abusing a little boy," said the woman, "and spilling all his milk."

"Come, Rollo," said Mr. George, "we must go along."

Rollo would have liked very much to have inquired further into this transaction; but he relinquished the idea, in compliance with his uncle's wish. He found, however, that his sympathy for the poor prisoner, as is usual in such cases, was very much diminished by knowing the offence of which he had been guilty.

Rollo had an opportunity to experience the advantages of the London system of police three or four days after this, in an emergency, which, as I am now speaking of the policemen, I will mention here. He had been to see the British Museum with his uncle George, and had undertaken to find his way back to the lodgings in Northumberland Court alone, his uncle having had occasion at that time to go in another direction. The distance from the museum to Northumberland Court was only about a mile; but the intervening streets were very short, narrow, and intricate, and were inclined towards each other at all possible angles, so that Rollo very soon lost his way. In fact, he soon became completely turned round; and, instead of going towards Northumberland Court, he went wandering on in exactly a contrary direction. He turned this way and that, and looked at the names of the streets on all the corners,