[Sidenote: Central-American upheavals] Under the shadow of impending war with the United States, a new Constitution was proclaimed in Mexico. Santa Anna prepared for the conflict by assuming the practical powers of a dictator. In Ecuador, too, a new Constitution was adopted. General Flores had himself made President for a third time. When the opposition to him became too formidable, he consented to yield and quit the country after accepting a bonus of $20,000 and the title of generalissimo. Another revolution in Hayti resulted in the expulsion of President Boyer. [Sidenote: Revolution in Spain] [Sidenote: Isabella proclaimed queen] [Sidenote: Spanish marriage projects] In Spain a revolutionary junta in June once more assumed power at Barcelona. Other parts of the country declared for the ex-Queen Regent Christina. On July 15, General Narvaez compelled the surrender of Madrid to Christina. General Espartero laid siege to Seville. On November 8, the Spanish Cortes proclaimed as queen, Princess Isabella, then in her thirteenth year. With the crown of Spain on the head of a young girl, and no immediate successor in sight but her sister, the King of France and his Prime Minister, Guizot, deemed the time ripe for action. It was proposed to marry both Spanish princesses to the sons of Louis Philippe, so as to secure the throne of Spain to the House of Orleans, as it had once been secured to that of Bourbon. For the French people the interest in Spain was revived by Gautier's new book, "Tras los Montes." During the negotiations over the new extradition treaty with England, the project was confidentially broached to Lord Aberdeen. He gave his consent to the proposed marriage of the Duke of Montpensier to the Infanta Fernanda, on the express understanding that it should not be celebrated until Queen Isabella had been married herself, and had children. For some time still the plan hung fire. In the meanwhile, Hungary was once more in uproar. Kossuth, after his release from prison in 1840, had become the spokesman of the new generation of Magyars. The other wings of the Hungarian party were led by Scechenyi and Deak. [Illustration: THE EMPEROR OF CHINA RECEIVING THE DIPLOMATIC CORPS] [Sidenote: Hungarian reform movement] [Sidenote: Clash at Agram] [Sidenote: Kossuth's oratory]