From the camp on the Raritan, whence he had gone, he addressed a letter “To the Publick,” expressing his willingness that Congress should direct a court-martial to inquire into his conduct. The accusations of the Supreme Executive Council were laid before that body, but the trial was delayed and not until January, 1780, was the court-martial held. Arnold was “convicted of using the public wagons for his own benefit,” but he was acquitted of any corrupt intent and sentenced to be reprimanded by General Washington. The verdict exasperated Arnold, who was still further humiliated by the action of Congress on claims preferred by him growing out of the Canadian expedition. His estimate was materially reduced by the Treasury officers, and when Arnold appealed to Congress a committee reported that a larger sum had been allowed him than was really due. Having failed to secure a loan from the French Ambassador, he determined to betray his country for British gold. The extravagance of Arnold produced the want of money and probably the predilections of the wife for what was splendid in the British army influenced them both to forfeit home and country for a splendid but elusive hope. It must be remarked of “Peggy” Shippen that she had been the belle of Philadelphia and the standing toast of the British officers while their army was in Philadelphia. She had been brought up in British affections. Her father, Chief Justice Edward Shippen, was biased on that side. Major Andre was intimate in the family, which led to a friendly correspondence between Miss Shippen and him. After Arnold married her he, of course, became acquainted with that fact, and encouraged its continuance. It was continued, until at last Arnold and Andre opened it more directly between themselves, under the names of Gustavus for the former and John Anderson for the latter. The failure of Arnold’s scheme to surrender West Point, his flight, the execution of Andre, and the unhappy life of “Peggy” Shippen Arnold are familiar facts of history. In September, 1780, the populace of the city of Philadelphia were drawn together in great excitement to witness the degradation and burning of Arnold, the traitor, in effigy. His figure, in regimental uniform, was placed on a cart and drawn through the city, to be burned on High Street Hill. The effigy had two faces and a mask in his left hand. Near him was the devil, in black robes, holding out to him a purse of money. Near them were transparencies of pictures and letters describing his treachery and treason. The procession began from the rear of St. George’s Methodist Church, in Fourth Street, and was in the following order: Gentlemen on horseback, a line of Continental officers, sundry gentlemen in a line, a guard of the City Infantry. Just before the cart, drums and fifes playing all the way the “Rogues’ March.” Guards on each side of the cart.