But it was not without much bitterness that it had been so decided. Mazzini's protest against the proposal of the fusion had been temperate and reasonable; but it had been sufficient to attract the attention of the enemies of Italy; and, while Gioberti had come to Milan to arouse sympathy with the movement for the fusion, a Jew named Urbino (who was unknown to the Republican leaders in Milan) was taking advantage of the differences of opinion to stir up riots against the Provisional Government. On May 28 (the day before the actual closing of the poll) an anonymous placard appeared, calling on the National Guard and the people to meet in the Piazza San Fedele, in front of the office of the Provisional Government. A deputation of the National Guard was about to demand the deposition of its captain; and the crowd which gathered in the Piazza San Fedele mixed itself up with the deputation. One of the agitators named Romani, demanded the convocation of a Constituent Assembly and denounced the proposed vote of fusion. Many even in the crowd opposed Romani; and the President, by promises of further security for personal freedom, was able to disperse them. The next day, however, they gathered again, with cries against the Piedmontese, and broke into the civic palace. The students heard of the disturbance, and rushed to the rescue of the Provisional Government. Casati had at first been panic struck; but he now gathered courage, and tried to address the people. Urbino attempted to drown his voice by shouting that the Government had resigned; and he exhibited a list of a new Government, composed of some of the leading Republicans in Milan. Casati snatched the list from his hand, and tore it in pieces. Many voices in the crowd denounced Urbino, and the rioters were speedily arrested or dispersed. The unreality of this demonstration, as an exhibition of any popular feeling, was clear from every circumstance connected with it. The innocence of the Republican leaders might be gathered from a stern protest against the proceedings issued by Mazzini directly after; and the real source of the agitation might not unfairly be inferred from the cries of "Viva Radetzky," which broke out from some of the less cautious agitators. But the Provisional Government either was, or seemed to be, alarmed about the possible consequences of the riot of May 29; and Cernuschi, who had been the first to propose the deputation to O'Donnell which had preceded the struggle of the Five Days, and who had fought gallantly during that struggle, was arrested at midnight on the very night of the riot, and sent to prison. He was soon after set free, from want of any evidence against him; but the bitterness which his arrest had caused against the Provisional Government did not so soon come to an end.