Marshal Diebitsch, before commencing hostile operations, opened negotiations, and, for this purpose, sent a general of division, Witt, with a flag of truce to our head-quarters. This general was stopped at our advanced post, whither general Krukowiecki was sent by the commander in chief, with full powers, to meet him. General Witt commenced with expressions of the greatest sensibility, and enlarged much upon the friendship which ought to exist between the Poles and the Russians as brother nations. He then spoke in very flattering terms of the heroism of the Poles, lamenting that it was not displayed in a better cause. After much complimentary language, he insensibly passed to the ideas of duty and obedience to the monarch. General Krukowiecki, who understood perfectly well all these professions, which he knew to be insidious, answered nearly in the following laconic terms: 'General, after the sad circumstances which have taken place, after the bloody combats to which we have been forced by the tyranny of fifteen years, by the refusal of justice, and in fine by the violation of our frontier, and the laying waste of our territory,--upon this territory we can make no arrangements. You know well what are the frontiers of Poland. Upon the banks of the Dnieper, four hundred miles hence, we may enter into negotiations.' Thus all was ready for the sanguinary battle of two days, which followed, and one memorable in the annals of war. It commenced by a combat on the 24th at Bialolenka, and ended on the 25th on the plain of Grochow. POSITION ON THE 24th, AND BATTLE OF BIALOLENKA The position of the two armies, on the 24th, was as follows. The Polish army occupied the same ground as when they ceased firing on the 20th; but the force was disposed in a different manner.--The right wing was reinforced by the division of general Szembek; and although Bialolenka, Kawenzyn, and Wavre composed the line of combat, there was this difference, that, while before, the centre was at Kawenzyn, and the left wing at Bialolenka, at present the left wing was at Kawenzyn; the forces which were at Bialolenka were posted as a detached corps, and the centre of the army was at the forest of elders. The right wing occupied the space between the great road and the marshes of the Vistula, called the marshes of Goclaw. This arrangement made our line more concentrated. The first division under Krukowiecki, which was at Bialolenka, with the division of cavalry under Uminski, was directed to observe the great road from Jablonna, and all the roads leading from Radzimin and Zombki to Warsaw. Between Kawenzyn and Bialolenka the debouchment of the enemy was prevented by extensive marshes. The Russian army was upon the same points as on the 20th. Their greatest force was opposed to our right wing at Wavre.