This, also, is his story in his Rockville lecture, in which he admits that he was a member of the conspiracy to capture the President, but asserts that he was never a member of the conspiracy to assassinate him. Why did he obey Booth's summons which required him to come at once to Washington? Why did he come by way of Elmira? He says in his lecture that he went to Elmira in the interest of a plan to liberate the rebel prisoners that were held at that place. He had just been to Richmond, carrying dispatches from Davis and Benjamin to their agents in Canada. Active measures were at once resorted to to accomplish the assassinations that had been planned without delay, and had the scheme been fully realized it was no doubt a part of this plan to bring into active service at once all the secret treasonable military organizations throughout the North, liberate all the rebel prisoners held in Northern prisons, and inaugurate a new rebellion in the North, in aid of the existing rebellion in the South. Surratt admits that he went to Elmira on this business. He went there no doubt to arrange with other conspirators there for carrying out this purpose when notified of the success of the assassination plot. No doubt similar arrangements had been made at Chicago to liberate the prisoners at Camp Douglass; and perhaps at other places. The partial failure of the assassination plot, and the signal triumph of our arms, admonished these Northern traitors that they had better not enter the arena of actual war, and frustrated all the plans of Jefferson Davis and his Canada Cabinet. Surratt's admissions are right in the line of our theory, and tend to prove its correctness; but his claim that he was only a member of a conspiracy to capture is manifestly untrue. Let us hear the conclusion of that eminent jurist, Judge Pierrepont, founded on a careful consideration of all the evidence on this point. "Now you see gentlemen, what is meant by a change of plan. In the spring of 1864 the plan was to murder Mr. Lincoln. They laid various plans for its accomplishment. They thought to do it as he went to the Soldiers' Home, by the telescopic rifle, and they did not intend, in the event of concluding to carry out that plan, to let his wife or his child stand in their way. They then thought to do it by having Payne call upon Mr. Lincoln, get into conversation with him, listen to his stories, seem to be interested in them, and then, at that moment, to strike the knife home, deep into his heart. They at another time thought to poison him, and for this purpose tried the cup; but it seemed that that failed them once, and, as Booth said, might fail them again. They finally concluded they would try to kill him in the theatre, instead of on his way to the Soldiers' Home, and have Payne kill Secretary Seward at his house. That plan they carried out. But, gentlemen, notwithstanding this change of plan, never was there for more than a year any other purpose than to murder.