host and hostess, whether the invitation was
accepted or not. If a card is sent or mailed,
it should be accompanied with an apology.

To call on an acquaintance in an opera
box does not relieve one of the duty of making
a formal call in return for social favors.

When calling on the hostess but not on
the host, a man should leave a card for him.
If the hostess be out, he should leave two
cards.

Married men can return their social obligations
to women by personal calls, or the
women of the family can leave the men's
cards with their own.

A call should be made the day following a
luncheon or a breakfast; the same after a
dinner, or at least within a week. A call
should be made within a week after a ball.

After a theatre party given by a man, he
should call within three days on the woman
he escorted, or leave his card, and should
call within a week on the remainder of his
guests.

MEN CALLING ON MEN. At the beginning of