Marshal Maniere's office, 1190 Broadway, and that of Marshal Jenkins, corner of Forty-sixth Street and Third Avenue, would be more likely to be the points attacked, he hurried off the following telegrams: July 13, 8.35 A.M. From Central Office to Seventeenth, Eighteenth, and Twenty-first Precincts: Send ten men and a sergeant forthwith to No. 677 Third Avenue, and report to Captain Porter of Nineteenth Precinct for duty. J. A. KENNEDY. July 13, 8.50 A.M. To Twenty-ninth Precinct: Place a squad of ten of your men, with a competent sergeant, at No. 1190 Broadway, during the draft--if you want more, inform me. J. A. K. 8.55 A.M. To Sixteenth and Twentieth Precincts: Send your reserve to Seventh Avenue Arsenal forthwith. J. A. K. Telegrams were now pouring in from different quarters, showing that mischief was afoot, and at nine o'clock he sent the following despatch: "To all platoons, New York and Brooklyn: Call in your reserve platoons, and hold them at the stations subject to further orders." It should be noted, that ordinarily one-half of the police of the Metropolitan District, which took in Brooklyn, is relieved from both patrol and reserve duty, from six o'clock in the morning till six in the evening. The other half is divided into two sections, which alternately perform patrol and reserve duty during the day. A relief from patrol duty of one of these sections takes place at eight o'clock A.M., when it goes to breakfast. Hence, the orders issued by the Superintendent to call in these could not reach them without a considerable delay. It now being about ten o'clock, Mr. Kennedy, having despatched an additional body of men to the Twenty-ninth Precinct, got into his light wagon, to take a drive through the districts reported to be most dangerous. He went up far as the arsenal, and giving such directions as he thought necessary, started across the town to visit Marshal Jenkins' quarters in the Twenty-ninth Precinct. CHAPTER XII. Commencement of the Mob.--Its Line of March.--Its immense Size.--Attacks a Provost-marshal's Office, in Third Avenue.--Set on Fire.--Terrible Struggle of Kennedy for his Life with the Mob.--Carried to Head-quarters unconscious.--Acton's Preparations.--The Telegraph System.--Mob cutting down Telegraph Poles.--Number of Despatches sent over the Wires during the Riot.--Superintendent of Telegraph Bureau seized and held Prisoner by the Mob.