On the 18th of May, Mr. Thornhill was indicted at the Old Bailey sessions for the murder; and the facts already detailed having been proved, the accused called several witnesses to show how ill he had been used by Sir Cholmondeley; that he had languished some time of the wounds he had received; during which he could take no other sustenance than liquids, and that his life was in imminent danger. Several persons of distinction swore that Mr. Thornhill was of a peaceable disposition, and that, on the contrary, the deceased was of a remarkably quarrelsome temper; and it was also deposed, that Sir Cholmondeley, being asked if he came by his hurt through unfair usage, replied, "No; poor Thornhill! I am sorry for him; this misfortune was my own fault, and of my own seeking. I heartily forgive him, and desire you all to take notice of it, that it may be of some service to him, and that one misfortune may not occasion another." The jury acquitted Mr. Thornhill of the murder, but found him guilty of manslaughter; in consequence of which he was burnt in the hand. COLONEL JOHN HAMILTON. CONVICTED OF MANSLAUGHTER AS SECOND IN A DUEL. There was no occurrence which at the time occupied so much of the public attention, and excited so much general interest, as the duel which took place in the year 1711, between the Duke of Hamilton and Lord Mohun; in which, unhappily, both the principals fell. The gentleman who is the subject of the present notice, was the second of the noble duke, and appears to have been connected with him by the ties of relationship. At the sessions held at the Old Bailey, on the 11th of September, he was indicted for the murder of Charles Lord Mohun, Baron of Oakhampton, on the 15th of November preceding; and at the same time he was indicted for abetting Charles Lord Mohun, and George Macartney, Esq., in the murder of James, Duke of Hamilton and Brandon. Colonel Hamilton pleaded not guilty; and evidence was then adduced, which showed that Lord Mohun having met the Duke of Hamilton at the chambers of a master in chancery, on Thursday the 13th of November, a misunderstanding arose between them respecting the testimony of a witness.