The Russians were seen to be falling back as they advanced, and Buonaparte--impatient to overtake and rout them--pushed forward his troops rapidly. On reaching the river Wilna it was found to be swollen by the rain, and the bridges over it were demolished; but Buonaparte ordered a body of Polish lancers to cross it by swimming. They dashed into the torrent, and were swept away by it almost to a man, and drowned before the eyes of the whole army. On the 28th of June, however, Napoleon managed to reach Wilna, which Barclay de Tolly had evacuated at his approach, and there he remained till the 16th of July, for he had outmarched his supplies, few of his waggons having even reached the Niemen, owing to the state of the country through which they had to be dragged, and the Russians had taken care to carry off or destroy all provisions for man and horse as they retreated. His vast host began, therefore, at once to feel all the horrors of famine, and of those other scourges that were soon to destroy them by hundreds of thousands. Meanwhile, the mission of the Abbé de Pradt to Poland had failed. The abbé, believing in the reality of the promises of Buonaparte, had faithfully executed his mission. The Poles met in diet at Warsaw, and expressed their gratitude to the Emperor for his grand design of restoring their nation. The country was all enthusiasm, and a host of soldiers would soon have appeared to join his standard, when Napoleon returned them an evasive answer, saying that he could not do all that he wished, as he was under engagement to Austria not to deprive her of Galicia. As to the provinces held by Russia, he assured them that--provided they showed themselves brave in his cause--"Providence would crown their good cause with success." This positive information regarding Austria--this vague statement regarding Russia, at once showed the hollow hypocrisy of the man, and from that moment all faith was lost in him in Poland. To have restored Poland was in the power of Buonaparte, and would have been the act of a great man; but Buonaparte was not a great man, morally: he could not form a noble design--he could form only a selfish one. But he immediately felt the consequences of his base deceit. The Poles remained quiet; nor did the people of Lithuania respond to his calls on them to rise in insurrection against Russia. They saw that he had intended to deceive the Poles, and they felt that, should he make peace with Russia, he would at once sacrifice them. They were about to form a guard of honour for him, but they instantly abandoned the design; and thus his miserable policy destroyed all the effect which he contemplated from the action of the nations on the Russian frontiers.