Again, there are others, the delivery of which, anticipating all the dullness and verbosity with which they are certain to be filled, we dread like the incursions of a well-known bore. Who would not wish to be the writer of the one? Who would not take any amount of pains with his correspondence to avoid being dreaded as the other? Always answer any letter that may be addressed to you, no matter who the writer may be. If the letter be from one who has no business to write to you, nevertheless acknowledge it, and by your style and manner check further impertinence. Thus: WASHINGTON, D. C., Jan. 7th, 18-. SIR: I write to acknowledge the receipt of your letter of the 5th inst., acquainting me with your opinion of my speech in Congress on the 27th ultimo. I am, sir, Your obedient servant, JAMES M. --- Mr. P. C. LITTLETON, Philadelphia. Business letters generally have the name of the firm or person to whom they are addressed written above the "Gentlemen." or "Sir," as: "Messrs. DICK & FITZGERALD: "Gentlemen," Or, "JOHN BROWN, ESQ.: "Dear sir." The name of the place from which the letter is written, the date, the full name of writer and receiver, should be given in some part of a letter. The practice of heading a note "Monday," without a date, and signing it "Charlie," is very embarrassing; it makes it difficult to answer a note unless immediately, when the day of the week can be readily identified with the day of the month, and when the receiver knows who his correspondent really is. Besides this, in the event of the letter miscarrying, it cannot be returned if there be no surname attached to the signature. A most important lawsuit in London was lost by a letter, of great value and significance otherwise, being dropped from the evidence for want of identification, being directed, "Dearest Tootings," and signed, "Your loving Poppets." It may seem absurd that a letter of weight could contain such silliness; but it was a fact. Do not write on scraps of paper, as if your correspondence were not worth the cost of a proper sheet. Neither use old envelopes turned, as some people are wont to do. Always be sure that your letter has sufficient stamps upon it to fully prepay its weight. Do not enclose stamps for an answer unless the matter be a business one, and your own proper affair. Should you send manuscript subject to approval to an editor, enclose stamps sufficient to pay for its return. You have no right to put another to this expense, especially as you already require from him a sacrifice of time, in order to look over what you have sent.