"There is a book which will teach you when to put on black stones or diamonds, to wear caps of black étamine* or a gauze kerchief. It will then tell you in what manner one cuts a mourning whose days are irregular. You will learn in this useful book that one wears black for the larger part of it, and that if the mourning, for example, is for fifteen days, black is worn for eight days and white for the following seven.
"In Paris one wears mourning for one's parents, for monarchs, princes and princesses of Europe; mourning is never worn for a friend.
"You want to be saddened at the death of a sovereign; the public papers will tell you that mourning is suspended, and that you may only legitimately put off the liveries of sadness in three weeks, following a pink ball which throws off this epoch of crêpe, flat lappets, hanging coiffures. But on the day indicated by the weekly paper, everyone is in black, and a multitude of people which have no other dress are thus very satisfied.
"When the whole court is in black, only the king is in violet."
Sébastien MERCIER, Tableau de Paris, edit. 1783
* A light fabric, often used for straining liquids.