Coming and Going
Promptness in arriving is a virtue, but remember that you have no claim upon the time of your host or hostess, until ten or fifteen minutes before the hour appointed, and, if you inadvertently arrive too soon you should remain in the dressing-room until very near the hour.
Departure is from half to three-quarters of an hour after the repast, and no matter what the entertainment, eleven o’clock should find every dinner guest departed.