It will be seen upon the frontispiece map that when the Arch-Duke's men reached Pont-à-Marcq and crossed the river there, they would take the French camp and the main French forces there in reserve, weaken the power of the French resistance at the Bridge of Bouvines, afford Kinsky the opportunity of crossing at that point, and that, immediately after that crossing, Kinsky and the Arch-Duke, having joined hands, would be in sufficient strength to push back the French from Sainghin and to march up north together towards Mouveaux. The appearance of their combined force at Mouveaux by noon would fulfil the time-table, and at mid-day of Saturday, if the time-table were thus fulfilled, the whole combined force of the second, third, fourth, and fifth columns would have been astraddle of the Lille-Courtrai Road, would have cut off Souham's corps from Lille, and could await Clerfayt if he had not yet arrived. When, therefore, the Arch-Duke and the fifth column should have crossed the Marque at Pont-à-Marcq, the fortunes of the fourth column would have blended with it, and the story of the two would have been one. We may therefore leave Kinsky still waiting anxiously in front of the broken bridge at Bouvines for news of the Arch-Duke, and conclude the picture of the whole advance from the Scheldt by describing what had happened and was happening to that Commander and his great force of 17,000 to 18,000 men. (B) THE FIFTH COLUMN UNDER THE ARCH-DUKE CHARLES When the Arch-Duke Charles had let Kinsky know upon the day before, the Friday, that he could not be at the appointed post of Pont-à-Marcq by the next daybreak, he had implied that somewhere in the early morning of that Saturday, at least, he would be there. Exactly how early neither he nor Kinsky could tell. His troops had sixteen full miles to march; they had but one road by which to advance, and they were fatigued with the enormous exertion of that hurried march northward to St Amand, which has already been set down. Such were the delays at St Amand in preparing that advance, that the night was far gone before the fifth column took the road to Pont-à-Marcq, and the effort that was to be demanded of it was more than should have been justly demanded of any troops. Indeed, the idea that a body of this great size, tied to one road, could suffer the severe effort of the rush from the south to St Amand, followed by a night-march, that march to be followed by heavy fighting during the ensuing morning and a further advance of eight or nine miles during the forenoon, was one of the weakest points in the plan of the allies. No such weakness would have been apparent if the main body of the Austrians under the Arch-Duke had been called up on the 12th instead of the 14th, and had been given two more days in which to cover the great distance. But, as it was, the delay of the Emperor and his staff in calling up that main body had gravely weakened its effective power.