After a _first hospitality_, whether accepted or not.
Calls of condolence.
After-dinner calls by cards.
_Alternative_.--In such cases, when _personal_ card-leaving is
_impossible_, the card is sent by a private messenger, and an
explanation, or apology, is sent by _note_.
Cards of condolence may be sent by _post_ by friends at a distance; but
not by persons residing in the near vicinity.