SIR--I am sorry to acquaint you the post-boy coming from Selby to this city was robbed of his mail between six and seven o'clock this evening. About three miles on this side of Selby he was accosted by a man on foot with a gun in his hand, who asked him if he was the post-boy, and at the same time seized hold of the bridle. Without waiting for any answer he told the boy he must immediately unstrap the mail and give it him, pointing the muzzle of the gun at him whilst he did it. When he had given up the mail, the boy begged he would not hurt him, to which the man replied he need not be afraid, and at the same time pulled the bridle from the horse's head. The horse immediately galloped off with the boy, who had never dismounted. He was a stout man dressed in a drab jacket, and had the appearance of being a hicklar. The boy was too much frightened to make any other remark on his person, and says he was totally unknown to him. The mail contained the bags for Howden and London, Howden and York, and Selby and York. I have informed the surveyor of the robbery, and have forwarded hand-bills this night to be distributed in the country, and will take care to insert it in the first papers published here.--Waiting your further instructions, I remain with respect, sir, your obliged and obedient humble servant, THOMAS OLDFIELD. Let us now go forward to the year 1876. In that year this identical bag, for which a reward had been offered at the time without result, was placed in our hands, having been found concealed in the roof of an old wayside public-house situated not far from the scene of the robbery, and then in course of demolition. The original documents were called for and produced; and thus, after an interval of nearly eighty years, the bag and the official papers in which its loss was reported have come together and found one common resting-place. Of the identity of the bag there is no question. Not only do the form and texture proclaim it to be of the last century, but it bears upon it the word "Selby," and a medallion with the letters "G. R."[78] [78] This experience is not to be compared with that of Inspector Dicker, who in 1839 wrote to the Secretary of the Post Office as follows:--