They then required him to make a denial under oath, and set a lawyer at work to put this disavowal in the most imposing shape, whilst they sent for an officer to administer the oath, informing Conover that he must appear to the officer not only to be willing, but anxious to swear to this disclaimer, in which they make him say he had been personated before the Commission by some infamous scoundrel, who had sworn to a tissue of falsehoods, and telling him that if he manifested the least hesitation or unwillingness his life would pay the forfeit. He at first, in order to get away from them, proposed that he would go to the hotel and prepare the paper that they required. O'Donnell told him that would not do, and that he would shoot him down like a dog if he did not do as they required. Conover still declining, Sanders said to him, "Wallace, you see what kind of hands you are in; I hope you will not be so foolish as to refuse." Seeing there was no other way of escape from them, Conover finally did what they required. They then had a lawyer, by the name of Kerr, to write out and sign and be qualified to a very formal affidavit covering the whole case, to the effect that he was present and saw Conover swear to the disavowal referred to, and that he did it willingly, and appeared anxious to do so, in justice to his own character. These affidavits they at once published to the world through the Canada papers, and with them also published the following advertisement, as if from Conover:-- Five hundred dollars reward will be given for the arrest, so that I can bring to punishment, in Canada, of the infamous and perjured scoundrel who recently personated me under the name of Sanford Conover, and deposed to a tissue of falsehoods before the Military Commission at Washington. JAMES W. WALLACE. They also wrote and published over his name, as if from him, the following letter:-- _To the Editor of the Evening Telegraph:--_ Sir:--Please publish my affidavit now handed you, and the subjoined advertisement. I will obtain and furnish others for publication hereafter. I will add that if President Johnson will send me a safe conduct to go to Washington and return here, I will proceed thither and go before the military court and make _profert_ of myself, in order that they may see whether or not I am the Sanford Conover who swore as stated. MONTREAL, June 8th, 1865. JAMES W. WALLACE. Conover not returning to Washington at the time he was expected, it was realized that he had been put in jeopardy by the premature publication of his testimony, and so it became the duty of the United States to follow him with its protecting arm, and he was rescued through the intervention of General Dix.