Constitution from the Emperor. A struggle was evidently going on between Ferdinand and his courtiers. Whenever he was strong and able to hold his own, he was ready to make concessions. Whenever he was either ill, or still suffering from the mental effects of his illness, the Government fell into the hands of Windischgrätz and the Archdukes, and violent measures were proposed. Thus, though Arthaber and his friends were received courteously, and assured of the Constitutional intentions of the Emperor, yet at eleven o'clock on the same night there appeared a public notice declaring Vienna in a state of siege. But even Windischgrätz seems to have been somewhat frightened by the undaunted attitude of the people; and when he found that his notice was torn down from the walls, and that a new insurrection was about to break out, he sent for Professor Hye and entreated him to preserve order. In the meantime the Emperor had, to some extent, recovered his senses; and he speedily issued a promise to summon the Estates of the German and Slavonic provinces and the Congregations of Lombardo-Venetia. But the people had had enough of sham Constitutions; and the Emperor's proclamation was torn down. This act, however, did not imply any personal hostility to Ferdinand; for the belief that the Austrian Ministers were thwarting the good intentions of their master was as deeply rooted, at this time, in the minds of the Viennese as was a similar belief with regard to Pius IX. and his Cardinals in the minds of the Romans; and when the Emperor drove out in public on the 15th of March, he was received with loud cheers.