On the 11th day of February, 1873, Gen. Holt makes his appeal for testimony from the officers of Johnson's first Cabinet, by letter to John A. Bingham, requesting him to furnish his recollections of the late Stanton and the late Seward. On March 30th, 1873, he writes to James Speed, Ex-Attorney-General, inclosing a copy of Bingham's reply. On May 21st, 1873, he writes to James Harlan, Ex-Secretary of the Interior, inclosing a copy of Bingham's reply. In July, 1873, he writes to General Mussey, once Johnson's private secretary; and, in August, armed with the answers of these correspondents and with the letters he had gathered in 1867 and 1868, and unprovoked by any revivification of the old charge, he rushes into the columns of the Washington Chronicle with his formidable "Vindication." CHAPTER IV. THE TRIAL OF JOSEPH HOLT. On the threshold of his Vindication, Gen. Holt revives the discredited and apparently forgotten declaration made by Mr. Pierrepont on the trial of John H. Surratt, and stakes his whole case upon the establishment of the truth of the allegation that the petition for commutation, attached as it was to the record of the findings and sentences of the Military Commission, was the subject of consideration at a meeting of the Cabinet of President Johnson, and its prayer rejected with the concurrence of the members present at such meeting. So long as the contention is limited to what took place during that momentous hour between the President and himself, "alone," with the light thrown upon it by the record including the endorsed death-warrant and the affixed paper, he exhibits a certain lack of confidence in the strength of his defense. For, although he prints the "circumstantial evidence," as he calls it, to sustain his own version of the "confidential interview" (consisting of the two letters from his former clerk, heretofore alluded to, and the letter from Gen. Mussey saying that the "acting President" told him of the recommendation "about that time"), he confesses it was not until he recently had secured certain testimony that the petition had been considered by officers of the Cabinet, that he at length felt his case strong enough to warrant a public challenge of his adversary, and himself justified in submitting it to the public. In short, we have a sort of reversal of the position of six years before. _Then_, after having at first put forward the assertion that the petition was considered by the Cabinet, the Judge-Advocate summarily suppresses that branch of his case, and puts into the foreground the explicit asseveration of the identical paper being "right before the President's eyes" when he signed the death-warrant. "He wants no misunderstanding about that." _Now_, while he keeps in mind, it is true, this version of the confidential interview, he relegates it to the rear, and constitutes the Cabinet consideration the very citadel of his cause.