The Rev. Mr. Evans also swears that, after the 1st and before the 4th day of March last, he is certain that within that time, and on the 2d or 3d of March, he saw Dr. Mudd drive into Washington City. The endeavor is made by the accused in order to break down this witness, by proving another alibi. The sister of the accused, Miss Fanny Mudd, is called. She testifies that she saw the prisoner at breakfast in her father's house, on the 2d of March, about five o'clock in the morning, and not again until the 3d of March at noon. Mrs. Emily Mudd swears substantially to the same statement. Betty Washington, called for the accused, swears that he was at home all day at work with her on the 2d of March, and took breakfast at home. Frank Washington swears that Mudd was at home all day; that he saw him when he first came out in the morning about sunrise from his own house, and knows that he was there all day with them. Which is correct, the testimony of his sisters or the testimony of his servants? The sisters say that he was at their father's house for breakfast on the morning of the 2d of March; the servants say he was at home for breakfast with them on that day. If this testimony is followed, it proves one alibi too much. It is impossible, in the nature of things, that the testimony of all these four witnesses can be true.

Seeing this weakness in the testimony brought to prove this second alibi, the endeavor is next made to discredit Mr. Norton for truth; and two witnesses, not more, are called, who testify that his reputation for truth has suffered by contested litigation between one of the impeaching witnesses and others. Four witnesses are called, who testify that Mr. Norton's reputation for truth is very good; that he is a man of high character for truth, and entitled to be believed whether he speaks under the obligation of an oath or not. The late Postmaster General, Hon. Horatio King, not only sustains Mr. Norton as a man of good reputation for truth, but expressly corroborates his testimony, by stating that in March last, about the 4th of March, Mr. Norton told him the same fact to which he swears here: that a man came into his room under excitement, alarmed his sister, was followed out by himself, and went down stairs instead of going up; and that Mr. Norton told him this before the assassination, and about the time of the inauguration. What motive had Mr. Norton at that time to fabricate this statement? It detracts nothing from his testimony that he did not at that time mention the name of this man to his friend, Mr. King; because it appears from his testimony—and there is none to question the truthfulness of his statement—that at that time he did not know his name. Neither does it take from the force of this testimony, that Mr. Norton did not, in communicating this matter to Mr. King, make mention of Booth's name; because there was nothing in the transaction, at the time, he being ignorant of the name of Mudd, and equally ignorant of the conspiracy between Mudd and Booth, to give the least occasion for any mention of Booth or of the transaction further than as he detailed it. With such corroboration, who can doubt the fact that Mudd did enter the room of Mr. Norton, and was followed by him, on the 3d of March last? Can he be mistaken in the man? Whoever looks at the prisoner carefully once will be sure to recognize him again.

For the present I pass from the consideration of the testimony showing Dr. Mudd's connection with Booth in this conspiracy, with the remark that it is in evidence, and I think established, both by the testimony adduced by the prosecution and that by the prisoner, that since the commencement of this rebellion, John H. Surratt visited the prisoner's house; that he concealed Surratt and other rebels and traitors in the woods near his house, where for several days he furnished them with food and bedding; that the shelter of the woods by night and by day was the only shelter that the prisoner dare furnish these friends of his; that in November, Booth visited him and remained over night; that he accompanied Booth at that time to Gardner's, from whom he purchased one of the horses used on the night of the assassination to aid the escape of one of his confederates; that the prisoner had secret interviews with Booth and Surratt, as sworn to by the witness Wiechmann, in the National Hotel, whether on the 23d of December or in January is a matter of entire indifference; that he rushed into Mr. Norton's room on the 3d of March in search of Booth; and that he was here again on the 10th of April, four days before the murder of the President. Of his conduct after the assassination of the President, which is confirmatory of all this—his conspiring with Booth and his sheltering, concealing, and aiding the flight of his co-conspirator, this felon assassin—I shall speak hereafter, leaving him for the present with the remark that the attempt to prove his character has resulted in showing him in sympathy with the rebellion, so cruel that he shot one of his slaves and declared his purpose to send several of them to work on the rebel batteries in Richmond.

What others, besides Samuel A. Mudd and John H. Surratt and Lewis Payne, did Booth, after his return from Canada, induce to join him in this conspiracy to murder the President, the Vice-President, the Secretary of State, and the Lieutenant General, with the intent thereby to aid the rebellion and overthrow the government and laws of the United States?

On the 10th of February the prisoners Arnold and O'Laughlin came to Washington and took rooms in the house of Mrs. Vantyne; were armed; were then visited frequently by John Wilkes Booth, and alone; were occasionally absent when Booth called, who seemed anxious for their return—would sometimes leave notes for them, and sometimes a request that when they came in they should be told to come to the stable. On the 18th of March last, when Booth played in "The Apostate," the witness, Mrs. Vantyne, received from O'Laughlin complimentary tickets. These persons remained there until the 20th of March. They were visited, so far as the witness knows, during their stay at her house only by Booth, save that on a single occasion an unknown man came to see them, and remained with them over night. They told the witness they were in the "oil business." With Mudd, the guilty purpose was sought to be concealed by declaring that he was in the "land business"; with O'Laughlin and Arnold it was attempted to be concealed by the pretence that they were in the "oil business." Booth, it is proved, had closed up all connection with oil business last September. There is not a word of testimony to show that the accused, O'Laughlin and Arnold, ever invested or sought to invest, in any way or to any amount, in the oil business; their silly words betray them; they forgot when they uttered that false statement that truth is strong, next to the Almighty, and that their crime must find them out was the irrevocable and irresistible law of nature and of nature's God.

One of their co-conspirators, known as yet only to the guilty parties to this damnable plot and to the Infinite, who will unmask and avenge all blood-guiltiness, comes to bear witness, unwittingly, against them. This unknown conspirator, who dates his letter at South Branch Bridge, April 6, 1865, mailed and postmarked Cumberland, Md., and addressed to John Wilkes Booth, by his initials, "J. W. B., National Hotel, Washington, D.C.," was also in the "oil speculation." In that letter he says:—

"Friend Wilkes:—I received yours of March 12th, and reply as soon as practicable. I saw French, Brady, and others about the oil speculation. The subscription to the stock amounts to eight thousand dollars, and I add one thousand myself, which is about all I can stand. Now, when you sink your well, go deep enough; don't fail; everything depends upon you and your helpers. If you cannot get through on your trip after you strike oil, strike through Thornton gap and across by Capon, Romney, and down the Branch. I can keep you safe from all hardships for a year. I am clear of all surveillance now that infernal Purdy is beat....

"I send this by Tom, and if he don't get drunk you will get it the 9th. At all events, it cannot be understood if lost....

"No more, only Jake will be at Green's with the funds.

(Signed)
"Lon."

That this letter is not a fabrication is made apparent by the testimony of Purdy, whose name occurs in the letter. He testified that he had been a detective in the government service, and that he had been falsely accused, as the letter recites, and put under arrest; that there was a noted rebel, by the name of Green, living at Thornton gap; that there was a servant, who drank, known as "Tom," in the neighborhood of South Branch Bridge; that there is an obscure route through the gap, and as described in the letter; and that a man commonly called "Lon" lives at South Branch Bridge. If the court are satisfied—and it is for them to judge—that this letter was written before the assassination, as it purports to have been, and on the day of its date, there can be no question with any one who reads it that the writer was in the conspiracy, and knew that the time of its execution drew nigh. If a conspirator, every word of its contents is evidence against every other party to this conspiracy.

Who can fail to understand this letter? His words, "go deep enough," "don't fail," "everything depends on you and your helpers," "if you can't get through on your trip after you strike oil, strike through Thornton gap," etc., and "I can keep you safe from all hardships for a year," necessarily imply that when he "strikes oil" there will be an occasion for a flight; that a trip, or route, has already been determined upon; that he may not be able to go through by that route; in which event he is to strike for Thornton gap, and across by Capon and Romney, and down the branch, for the shelter which his co-conspirator offers him. "I am clear of all surveillance now"—does any one doubt that the man who wrote those words wished to assure Booth that he was no longer watched, and that Booth could safely hide with him from his pursuers? Does any one doubt, from the further expression in this letter, "Jake will be at Green's with the funds," that this was a part of the price of blood, or that the eight thousand dollars subscribed by others, and the one thousand additional, subscribed by the writer, were also a part of the price to be paid?

"The oil business," which was the declared business of O'Laughlin and Arnold, was the declared business of the infamous writer of this letter; was the declared business of John H. Surratt; was the declared business of Booth himself, as explained to Chester and Payne; was "the business" referred to in his telegrams to O'Laughlin, and meant the murder of the President, of his cabinet, and of General Grant. The first of these telegrams is dated Washington, 13th March, and is addressed to M. O'Laughlin, No. 57 North Exeter Street, Baltimore, Md., and is as follows: "Don't you fear to neglect your business; you had better come on at once. J. Booth." The telegraphic operator, Hoffman, who sent this despatch from Washington, swears that John Wilkes Booth delivered it to him in person on the day of its date; and the handwriting of the original telegram is established beyond question to be that of Booth. The other telegram is dated Washington, March 27, addressed, "M. O'Laughlin, Esq., 57 North Exeter Street, Baltimore, Md.," and is as follows: "Get word to Sam. Come on with or without him on Wednesday morning. We sell that day sure; don't fail. J. Wilkes Booth." The original of this telegram is also proved to be in the handwriting of Booth. The sale referred to in this last telegram was doubtless the murder of the President and others—the "oil speculation," in which the writer of the letter from South Branch Bridge, dated April 6, had taken a thousand dollars, and in which Booth said there was money, and Sanders said there was money, and Atzerodt said there was money. The words of this telegram, "get word to Sam," mean Samuel Arnold, his co-conspirator, who had been with him during all his stay in Washington, at Mrs. Vantyne's. These parties to this conspiracy, after they had gone to Baltimore, had additional correspondence with Booth, which the court must infer had relation to carrying out the purposes of their confederation and agreement. The colored witness, Williams, testifies that John Wilkes Booth handed him a letter for Michael O'Laughlin, and another for Samuel Arnold, in Baltimore, some time in March last; one of which he delivered to O'Laughlin at the theatre in Baltimore, and the other to a lady at the door where Arnold boarded in Baltimore.