The resolution to make the police independent of the politicians in the City government, was the last resort left to the better class of citizens, and the Legislature, appreciating the necessity for prompt action, at once complied with the demand made for a change. A "Metropolitan District,", consisting of the cities of New York and Brooklyn, the counties of New York, Kings, Richmond, and Westchester, and a part of Queens county, embracing a circuit of about thirty miles, was created by law. The control of this district was given to a commission of five citizens, subject to the supervision of the Legislature. The Mayors of New York and Brooklyn were made ex-officio members of this board. Mr. Wood, who was Mayor of New York at the time of the passage of this law, resolved to resist it, and to continue the old police in power. His conduct came near creating a terrible riot, but he was at length induced to submit to the law. The new system worked badly for some years, owing to the incompetency of the persons appointed as superintendent; but in 1860 a change was made. Mr. John A. Kennedy was appointed Superintendent of the Metropolitan Police, and the number of the commissioners was cut down to three. The law was remodeled, and besides other important changes, the duties of each member of the force were clearly defined. The new superintendent set to work with a will, and it was not long before the benefits of his administration became manifest. He had been informed that the force was almost as incompetent and inefficient as its old time predecessor, and he resolved to stop this. He caused the creation of the grade of inspector, and the appointment of energetic and reliable men. These inspectors are required to keep a constant watch over the rank and file of the force. They report every breach of discipline, examine the station houses and every thing connected with them, at pleasure. No member or officer of the force has the right to refuse to allow such examination or to refuse to answer any question put to him concerning his duty. The effect of this new rank was most happy. The men became conscious that the eyes of their superiors were on them at all times, and that the slightest breach of discipline on their part was sure to be detected and reported. The force became attentive and efficient, as if by magic. Incompetent and insubordinate members were thrown out, and good men put in their places. Matters continued to improve, until now, after a lapse of nearly eight years, the city has the best police force in the world. "KING KENNEDY."