He went to his office and poured out sundry vials of wrath upon the head of his luckless clerk, to whom he attributed the atrocious blunder which had been committed. The affair, however, did not end here. On the following day a letter was deposited in the post-office, at about one o'clock, in time for the Philadelphia mail, _directed precisely as before!_ viz. addressed to the Philadelphia firm, but directed "New York," and happened to fall under the eye of the clerk who had been cognisant of the error of the day previous. This second instance of gross inadvertence, or something worse, on the part of somebody, was rather too much for the equanimity of the post master, who at once sent for Mr. D., and showed him the letter, which seemed as if it was under the influence of some mischievous enchanter. As the words "New York," in the superscription, stared D. in the face, he in turn became enraged, and was about to leave the office with the fell design of discharging his clerk _instanter_. The post master then requested him, before he left, to sit down and alter the direction of the letter from "New York" to "Philadelphia," which he did. The letter was mailed accordingly, and duly received. A few days afterwards, the post-office clerk met Mr. D., and said to him, "I suppose you have turned off your clerk for his mismanagement in relation to the letter about which so much trouble was made in our office." "Ah!" replied he, "I believe I shall have to confess that _I_ was the only one to blame in the matter. My clerk was perfectly innocent. On returning home with the letter, I laid it down with the intention of having the mistake in the direction rectified, but having something else to call off my attention just then, it was mixed with the letters for city delivery, and was taken to the office with them by my clerk." Thus all this trouble and vexation was caused by the carelessness of a man who was accustomed to system and accuracy in the transaction of his business; and the above related facts may lead even persons of this description not to be too confident of their own freedom from error, when any mistake like that just mentioned occurs. I can give no better summary of the whole subject under consideration, than that which is found in some remarks made by Robert H. Morris, Esq., on the occasion of his retirement from the office of post master of New York, in May, 1849, at a dinner prepared for the occasion. During the evening Mr. Morris said, "Gentlemen, please fill your glasses for a toast. As I intend to toast a man you may not know, I deem it necessary, before mentioning his name, to tell you what sort of a man he is. "He rises at 4 o'clock in the morning and works assiduously during the whole day, until 7 o'clock in the evening--goes wearied to bed, to rise again at 4 o'clock, and again to work assiduously.