This day, the trial of Captain Douglas, second to the Earl of Cardigan in the recent duel, took place in the New Court, before Mr. Justice Williams and the Common sergeant. Mr. Thesiger informed the Court that the Captain now desired to surrender to take his trial. He then entered the dock, accompanied by three friends; and, the clerk of the Court having read the indictment, he pleaded “Not guilty.” On Mr. Justice Williams inquiring whether any one appeared for the prosecution, the clerk answered in the negative. Mr. Hobler, who originally had the case in hand, was in court, but had not been empowered to instruct counsel. He said he had taken measures to secure the attendance of the witnesses, when he received an intimation from the police commissioners to stay all proceedings. Mr. Justice Williams directed the trial to proceed; and the witness Dann, the miller, his wife and son, and also Busain the inspector of police, were examined, and repeated the statements made by them in the House of Lords on the trial of the Earl of Cardigan. Sir James Anderson, who attended the duellists professionally, declined, as before, to answer any questions, lest he should implicate himself. None of the Dann family could identify Captain Douglas, and Mrs. Dann pointed him out as the wounded man. After which, Mr. Justice WILLIAMS, addressing the Jury, said he was totally ignorant of the circumstances or causes by which it had happened that nobody appeared in behalf of this prosecution. He ought to regret it, for it had imposed upon him the somewhat arduous task of examining the witnesses, and also a certain degree of anxiety, to take care, whatever might be the cause of no person appearing to conduct the prosecution, that it should not fail for want of every witness being called, who knew anything of the transaction. It now, therefore, only remained for him to communicate his judgment as to whether any case should be submitted to their consideration. They could not close their eyes to the fact, that a duel had been fought on Wimbledon Common, on the day mentioned. The prisoner was indicted for shooting at Harvey Garnett Phipps Tuckett, and it was asserted that it should be proved that a man bearing that name was so shot at by the prisoner at the bar; but of this there was not one tittle of evidence. Moreover, none of the witnesses who saw the duel had spoken to the person of Captain Douglas. The indictment, therefore, must fall to the ground, and the prisoner was entitled to an acquittal. The Jury immediately returned a verdict of “Not guilty.” March 12.