After the assassination of the duc de Berri in front of No. 3 Rue du Rameau (February 13, 1820) as he was about to re-enter the Opera-House, Louis XVIII intended to build there a _chapelle expiatoire_. The Revolution of 1830 put an end to that project. The big poplar-tree, seen until recent years overlooking Rue Rameau, was planted as a tree of Liberty in 1848. It suddenly died in 1912. The fountain is the work of Visconti and Klagman (1844). In Rue Chabanais (1777) at No. 11, Pichegru, betrayed by Leblanc, was arrested (1804). Proceeding down Rue de Richelieu we see grand old mansions throughout its entire length. No. 71 formed part of the hôtel Louvois, given some four years before her tragic death to princesse de Lamballe who built roomy stables there. On the site of No. 62, quite recently demolished, was the hôtel de Talaru, built in 1652, which became one of the most noted prisons of the Terreur, and where its owner, the marquis de Talaru, was himself imprisoned. No. 75 was l’hôtel de Louis de Mornay, one of the most noted lovers of Ninon de Lenclos. No. 78, in the past a famous lace-shop, was owned by the East India Company. No. 93, once the immense hôtel Crozet, property of the ducs de Choiseul, cut through in 1780 by the making of two neighbouring streets, was inhabited in 1715 by Watteau. No. 102 stands on the site of a house owned by Voltaire, inhabited at one time by his niece. No. 104, at first a private mansion, became successively Taverne Britannique (1845-52), Restaurant Richelieu, Union Club du Billard et du Sport. No. 101 was at one time the restaurant du Grand U, so called in 1883 from an article in “Le National” apropos of the _Union Republicaine_. Leading out of Rue Richelieu, in the vicinity of the Bibliothèque Nationale, we see old houses in Rue St-Augustin, and Rue des Filles de St-Thomas, the latter cut short in more recent days by the Place de la Bourse and the Rue du Quatre-Septembre. The busts on No. 7 of the latter street recall a theatrical costume store of past days. No. 21 Rue Feydeau was the site of the Théâtre des Nouveautés, which became the Opéra-Comique, demolished in 1830. Rue des Colonnes was in former days closed at each end by gates. At No. 14 Rue St-Marc, Ernest Logouvé was born, lived, died (1807-1903). La Malibran was born at No. 31. The Bourse stands on the site of the convent of les Filles St-Thomas. Its cellars still exist beneath what was before 1914 the Restaurant Champeaux, Rue du 4 Septembre. The chapel stood till 1802 and was during the Revolution the meeting-place of the reactionary section Le Peletier; the insurgent troops defeated by Buonaparte on the steps of St-Roch had assembled there (1795) (_see_ p. 20).