excerpts from the 1904 edition of “a dictionary of etiquette”

• a man should remove his hat in a parlor-car, but not in a day coach.
• toothpicks should not be used in public. if necessity requires it, raise the hand over the mouth, with the hand behind it, using the toothpick as quickly as possible.
• salted nuts are eaten with the fingers.
• smoking a pipe in the street is becoming more common. it is poor taste, however on a fashionable street.
• men are not to wear gloves at high tea.
• when riding horses, it is customary for the woman to set the pace, and for the man who always rides on her right to accommodate himself to her—trotting, galloping, or walking his horse as she may do. if at a fox-hunt, this would mean that he must be ready to sacrifice much of his personal pleasure that she may enjoy herself.

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from: a dictionary of etiquette by w.c. green (1904).