A great advance was shown in the compositions of 1824. In the summer Felix, with his father and Rebecka, visited a bathing place on the shores of the Baltic, where he got his first impressions of the sea, afterwards reproduced in the _Meeresstille_ overture. In the next spring father and son were in Paris. There Felix met all the famous French musicians. Their devotion to _effect_ and superficial glitter, their ignorance of German music (Onslow, for instance, having never heard a note of _Fidelio_), the insulting liberties they took with some of its masterpieces, enraged the enthusiastic lad. With Cherubini his intercourse was more satisfactory. On the way home they paid a third, short visit to Goethe. The fiery Capriccio in F sharp minor, and the score of the two-act opera, _Camacho's Wedding_, from Don Quixote, were fruits of that year. That summer Abraham Mendelssohn purchased the large house and grounds (ten acres) at No. 3 Leipziger Strasse, which became the sumptuous abode of the family, until the death of Felix, when it was occupied by the Herrenhaus, or House of Lords of the Prussian government. As described by Hensel, it was a dignified, old-fashioned, spacious palace, then in the suburbs of Berlin, near the Potsdam gate, on the edge of the Thiergarten. Behind the house was a court with offices, then gardens and a park with noble trees,--just the ideal seat for such an artistic family! There was a room for large musical parties and private theatricals. Between the court and the garden stood the _Gartenhaus_, the middle of which formed a hall large enough to hold several hundred persons, with glass doors opening on the lawns and alleys. It was a delightful summer house, but rather bleak in winter. There the Sunday music found new life; there Felix composed the Octet for strings; there, too, in the fine summer of 1826, the work with which he "took his final musical degree," astonishing the world as a full-fledged composer, a master of original, imaginative genius, the overture to _A Midsummer Night's Dream_. He had been reading with his sisters the Schlegel and Tieck version of Shakespeare's play. In this and many instances Fanny, herself a good musician and composer, was her brother's confidante and critic. The fairy vein, which had cropped out in earlier works (the Quintet in A, the Octet, etc.), seemed to have reached its full expression here. And the wonder is that the motives of the Overture all came in place when he wrote music for the whole play seventeen years later. [Illustration: MENDELSSOHN'S MOTHER. From a pencil drawing made by William Hensel.]