We went to a dinner at Mr. William Gudin's (he is the celebrated painter) last night. There were the Prince and Princess Metternich, old Monsieur Dupin, Duke de Bassano, Monsieur Rouher, Baron Rothschild, and many other people. The gallery was lit up after dinner, and they smoked there (as a great exception). Smoking is against Madame Gudin's principles, but not against his, as the huge table covered with every kind of cigars and cigarettes could bear witness. Collecting cigarettes is a sort of hobby of Gudin's; he gets them from every one. The Emperor of Russia, the Chinese, the Turkish, and Japanese sovereigns, all send him cigarettes, even the Emperor. These last are steeped in a sort of liquid which is good for asthma. Every one who could boast of asthma got one to try. I must say they smelled rather uninvitingly. The Emperor loves Gudin dearly, and orders picture after picture from him, mostly commemorative of some fine event of which the Emperor is, of course, the principal figure, and destined for Versailles later. Gudin has a beautiful hotel and garden near us in the Rue Beaujon. The garden used to be square; but now it is a triangle, as a new boulevard has taken a part of it. Gudin talked much about his debts, as if they were feathers in his cap, and as for his law- suits, they are jewels in his crown! His famous picture of the Emperor's visit to Venice, now in the Luxembourg, is an enormous canvas, rather _à la Turner_, with intense blue sky deepening into a green sunset, pink and purple waves lashing the sides of the fantastic vessel in which the Emperor stands in an opalescent coloring. Some black slaves are swimming about, their bodies half-way out of the water, holding up their enormous black arms loaded with chains, each link of which would sink an ordinary giant. Baroness Alphonse Rothschild has one desire, which, in spite of a fathomless purse, seemed difficult at first to fulfil. What she wants is to play a sonata with the orchestra of the Conservatoire, _rien de moins_! She begged me to ask Auber how much it would cost. After due reflection he answered, twelve hundred francs. She was quite surprised at this modest sum; she had thought it would be so many thousands. Therefore she decided to convoke the orchestra, and has been studying her sonata with all zeal and with a Danish coach. I don't mean a carriage, but a man who can coach, after the English school system. She asked me to keep her in countenance, and wished me to sing something with the orchestra; but what should I sing? Auber could think of nothing better than "Voi che sapete," as the orchestra would have the music for it, and for frivolity he proposed "La Mandolinata," of Paladilhe. He said, "Il faut avoir de tout dans sa poche;" and the dear old master transcribed it all himself, writing it out for the different instruments. I shall always keep these ten pages of his fine writing as one of my most precious autographs.