Mamma, Frances, Isabella and Edward were at Sir C. Stuart's Costume Ball, which was a most beautiful sight, and the whole thing went off with great éclat. Frances went as a _Paysanne de Mola_, near Naples; her dress was a short petticoat, trimmed with green and gold, a green apron, and black, green and gold bodice, and a roll of the same colours round her head. It was very becoming to her and she looked very grand. In Paris she is known everywhere as _la belle Anglaise_. Isabella was a most airy Coquette, in blue and silver, with a cap of little bells on one side, and long tresses of hair plaited with blue-- she really looked beautiful. It is the dress of _Belle et Bonne_ in some Play. Mamma and Edward were both in blue dominoes. Last night we were at an enormous ball at M. Clarmont's, one of Lafitte's houses; the heat exceeded anything I ever felt. It was said 1200 people were asked, of all kinds and degrees. It was very disagreeable. Mamma is thinking of giving a dance and is at the moment writing the invitations, but the day is not yet fixed. The Duke of Wellington gives a Concert to-night, and it is said two costume balls. Yesterday we had some of the fooleries of the Carnival which the weather prevented on Sunday and Monday. Masks paraded the streets, the windows were full of heads, and all the people from one end of Paris to the other drawn in procession along the Boulevards and the Rue St Honoré. PARIS, _March 31st, 1818._ I hear nothing of the man taken up for shooting at the Duke, if it is true that one has been secured. Poor Bacon was taken up by 5 Gens d'Arms at nine in the morning and after a secret examination sent to the Conciergerie. It was conjectured he was concerned with a Banker who went off--but instead of that being true, the Banker absconded with all _his_ money! Sir C. Stuart means to make a fuss about it, for no one is safe if taken up and confined only on suspicion. The King on one of the most stormy days we have had took three people out to prevent their voting for the Recruiting Bill. However, they contrived to get back in time, by which means it was carried by four. He was angry--they said they did it as a point of duty to him. Lady Mansfield's Ball was fine--but too many women in proportion to the men, and many of the latter old. A great many French. I only saw one Lady out of each family. Many, many young ladies sat out. All the _ton_ French ladies danced the whole night. Lady M. hoped she should see you, tho' she forgot to invite you.