If sealing-wax is used, it should be of some
       dull color.

Morning dress. 
  Men.  Morning costume consists of a dark frock
       coat, with vest and light trousers.  This can
       be worn at any entertainment occurring in
       the daytime—­as, weddings, luncheons, receptions
       of all kinds, matinees, or ceremonious visits.

Anything worn is admissible in morning dress, a business suit, cutaway, sack suit, hats or caps, and undressed kid gloves of a dark color.

At out-of-town resorts, golf, wheeling, and
yachting costumes suitable for outdoor sport
may be worn in the morning.

It is considered the correct thing for a man
to tie his own tie instead of buying them
ready made.

See also afternoon dress—­men.  Evening
dress—­men.

Mother.  A mother should receive an invitation for
       any function to which her daughters are
       invited, and should go and return with them.

Debuts.  The mother and the elder unmarried
daughter, prior to the debut, calls formally
upon those who are to be invited.  She
stands at her daughter’s side to receive the
congratulations of the guests, and at a dance
she selects the first partner to dance with the
debutante, and at the dinner or supper is
escorted by the most distinguished man. 
See also chaperone.

Mother of bride.  At the wedding reception she is
       escorted by the father of the groom, and
       receives with the married couple.

At the wedding breakfast she is escorted
by the father of the groom.

Mother of groom.  At the wedding reception she
       receives with the married couple.

       At the wedding breakfast she is taken in
       by the father of the bride, following after
       the ushers and the maids of honor.

Mourning.  Those in mourning for parent, child,
       brother, or husband should not be seen at
       any public function or private entertainment
       before six months have passed.

  Cards.  These are the same size as visiting-cards. 
       A black border is used, the width to be
       regulated by the relationship to the deceased
       relative.

       They should be sent to indicate temporary
       retirement from and re-entrance into society.

Within a month after death in a family friends should leave cards.  The persons receiving the same should acknowledge the remembrance and sympathy when they are ready to resume their social functions.  This may be done by letter or card.

  Men.  Mourning cards are the same size as
       visiting-cards, and a black border is used, the
       width to be regulated by the relationship of
       deceased relative.