On the other hand, how pleasant it is, by means of an introductory letter, to bring together two kindred spirits, whose personal intercourse must inevitably produce mutual satisfaction, who are glad to know each other, glad to meet frequently, and grateful to the friend who has made them acquainted.
Letters of introduction should not be sealed. To do so is rude, and mean. If you wish to write on the same day to the same person, take another sheet, write as long an epistle as you please, seal it, and send it by mail.
It is best to deliver an introductory letter in person, as the lady or gentleman whose civilities have been requested in your behalf, may thus be spared the trouble of calling at your lodgings, with the risk of not finding you at home. This is very likely to happen, if you send instead of taking it yourself. If you do send it, enclose a card with your residence. Also, it is more respectful to go yourself, than to expect them to come to you.
As soon as you are shown into the parlour, send up the letter, and wait till the receiver comes to you.
When a letter is brought to you by a private hand, the usual ceremony is to defer reading it till the bringer has departed, unless he desires you to read it at once, which he will, if it is evidently a short letter. If a long one, request him to excuse you a moment while you look at the beginning, to see if your correspondent is well.
On farewell cards, it is usual to write with a pencil the letters "t. t. l.," "to take leave"—or "p. p. c.," "pour prendre congé." A lady complained to us that an acquaintance of hers, about to leave town, had left a card for her with "p. d. a." upon it. Not understanding the meaning of these letters, she had applied to a friend for explanation, who told her they meant "poor dear adieu." "Now," continued she—"I cannot understand why a mere acquaintance should be so familiar as to call me 'poor dear;' why am I a poor dear to her?" We relieved her by explaining that "pour dire adieu" was French for "to bid adieu."
To conclude—let nothing induce you to give a letter of introduction to any person whose moral character is disreputable.