Lord Castlereagh’s complaint was, that, they being both members of the cabinet, Mr. Canning had applied clandestinely to get him removed from office, for the purpose of bringing in the Marquis Wellesley in his place. Before Easter, it was affirmed, he made this application to the Duke of Portland, and obtained his promise that Lord Castlereagh should be removed from office. “Notwithstanding this promise,” said Castlereagh in his letter which accompanied the challenge, “by which I consider you presumed it unfit that I should remain charged with the conduct of the war, and by which my situation as a minister of the Crown was made dependent on your will and pleasure, you continued to sit in the same cabinet with me, and left me not only in the persuasion that I possessed your confidence and support as a colleague, but allowed me, in breach of every principle of good faith, both public and private, to originate and proceed in a new enterprise of the most arduous and important nature (the Walcheren expedition), with your apparent concurrence and ostensible approbation. You are fully aware that, if my situation in the Government had been disclosed to me, I could not have submitted to remain one moment in office, without the entire abandonment of private honour and public duty. You knew I _was_ deceived, and you _continued_ to deceive me.” Without presuming to cast any unfavourable imputation on the well-earned fame of Mr. Canning, it cannot be denied that, if Lord Castlereagh’s statement was correct, Mr. Canning’s conduct was most unjustifiable, both on public and on private grounds—both as a statesman and a gentleman. If he considered Lord Castlereagh as unfit to manage the important charge with which he was entrusted, and indeed the Walcheren expedition alluded to afforded a convincing proof of the correctness of his opinion, it was his duty not to remain with him in the cabinet one single hour, if he could not overrule his proposals; but to coincide in a project which he condemned, and to continue to act in conjunction with a minister whose removal he had urged on the plea of incapacity, was an act most unaccountable on the part of Mr. Canning, and only tends to show, that men placed in a public situation will be guilty of acts which they would scorn, as dishonourable, in the common affairs of life. BETWEEN MR. GEORGE PAYNE AND MR. CLARK. Sept. 6, 1810. A fatal duel was fought on Thursday morning upon Wimbledon Common by two gentlemen. At half-past five o’clock three post-chaises were noticed passing over Putney Bridge, and at half-past six, one of the chaises returned to the Red Lion, at Putney, with a wounded gentleman, of the name of Payne. Mr. Heaviside was sent for, and found that a pistol ball had gone through the groin. The unfortunate gentleman died at half-past four o’clock the same afternoon.