Macdonald and these troops was filled by the brigades of Compère and Thierry about Mouscron. Thus the formation of the French left wing was that of a double echelon; the three divisions being arranged at the three angles of an isosceles triangle, with the van at the apex, Mouscron, and the rear before Menin and Courtrai. The right wing, consisting of Bonnaud's and Osten's divisions, some thirty thousand strong, was assembled about Flers, two miles and a half to the east of Lille; where orders arrived on the evening of the 17th from Souham that a general attack was designed for the morrow, in which the duty of Bonnaud's division would be to march upon Lannoy and Roubaix.
It was not without anxiety that the reports from the various columns of the Allies were awaited on the evening of the 17th at the Austrian headquarters at Templeuve. The failures of Bussche to capture Mouscron, and of the Archduke Charles to reach the point assigned to him, had sufficed to mar Mack's plans; and of Clerfaye there was no news whatever.
May 17-18. Orders were therefore sent at three o'clock next morning to the Archduke Charles to march at once with his own and Kinsky's corps upon Lannoy; while the Duke of York and Otto were directed to attack Mouscron at noon, in the hope that before that time something would have been heard of Clerfaye. But it seems to have occurred to none of the Austrian Staff that the disposition of the Allied army, as prescribed by Mack, positively invited the French to take the offensive. On this night Bussche lay at Dottignies and Coyghem with his weakened corps of Hanoverians. On his left the main body of Otto's column, seven and a half battalions and three squadrons, was at Tourcoing, with detachments of two battalions at Wattrelos, and of three battalions and three squadrons at Leers, on the
