CHAPTER XII. The Marquise de Pouleprie---The celebrated Madame du Barry--Anecdote--Mademoiselle Mars in _Valerie_--Her admirable Style of Acting--Playing to the Galleries--Exclusive Nature of Parisian Society--French Conversation--Quickness of Perception--Walk in the Gardens of the Tuileries--Comparative Beauty of French and English Ladies--Graceful Walking of the Former--Difference of Etiquette--Well-bred Englishmen--Flight of Time--Colonel Caradoc, son of Lord Howden--New Year's Day--Custom of making Presents--Gallery of the Louvre--The Statues therein--Works of Art--_Chefs-d'oeuvre_ of the Old Masters--Consolation for Men of Genius--Nicolas Poussin, 134..