To conversation carried on at a distance of space and time, through the pen, not the lips, the simple and obvious principles upon which people act in the drawing-room or the fireside-circle are easily applied. Between those who really wish to talk together letters should fly as rapidly as the post can deliver them. If only one feels like writing, he should pour forth his heart to his friend, although that friend remain as silent as the grave. It would be as absurd to say that either party "owes the letter," as to charge him who had the penultimate word in a dialogue with the duty of making the first remark the next time he encounters her who had the last word. When the topic of immediate interest has been disposed of, a correspondence is over. It matters as little who contributed the larger proportion to it, as who contributes the most to a dialogue. When the end is reached, the story is done. It is for the party who is first in the mood of writing, after an interval of silence, to open a new correspondence, in which there shall be no reference to previous communications, and which may die with the first letter or be protracted for a week or a month. Thus we are brought to a position not very far from that taken by my eccentric friend. General or regular correspondence is useless, baneful, and in most cases impossible; but special correspondence, born of the necessities of man as a social being, and circumscribed by them, may be from time to time possible. There can be no harm in an occasional exchange of bulletins of health and happiness, like the "good morning" and "how d'ye do" of the street and the parlor, or in making new-year's calls, as it were, annually upon one's distant friends. I know two ladies who have done this as respects each other for twenty years. But, as a rule, the shorter epistles of this description are, the better. Some simple formula, which might be printed for convenience's sake, would answer the purpose, and complete the analogy with the practice of paying three-minute visits of ceremony or of leaving a card at the door.