SUPPER: The senior patroness leads the way to supper, escorted by the man honored for the occasion.
If one large table is provided, the men, assisted by the waiters, serve the women. When small tables are used, the patronesses generally sit by themselves, and the guests group themselves to their own satisfaction.
If a patroness asks a man to sit at her table, she should provide a partner for him, and in case of a previous engagement, he should notify her by mail.
WOMEN: A woman should always keep any engagement made, if possible. If, for a good reason, it is desired to break one, she should do so in ample time to enable the man to secure a partner. — The Book of Good Manners
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