was aware of it, and, on the morning of the 17th, began a retreat also on Waterloo, where he and Blucher had concerted to form a junction and give battle. Blucher had made his retreat so artfully, that the French were at a loss to know which way he had taken. It appeared as if he had directed his march for Namur, and about three o'clock on the 17th Grouchy received orders to pursue Blucher, wherever he might have gone. This dispatch of Grouchy with thirty-two thousand men to deal with Blucher proved a serious mistake for Napoleon, who, not having Grouchy's division to support him at the battle of Waterloo, severely blamed him, and charged his own defeat upon him. But it was the ungenerous practice of Buonaparte, whenever he was defeated, to charge it upon some of his generals, even when they had been acting most meritoriously. This he did in Russia, and this he repeated in the retreat on Paris in 1814, and this we shall find him doing again in the battle of Waterloo, to the undaunted and indefatigable Ney. Grouchy has shown satisfactorily that he himself first brought to Napoleon the news of Blucher's retreat, and requested orders to pursue him with his cavalry, but that he could not obtain such order till noon on the 17th, and then the order was to follow him wherever he went. We shall soon see that Thielemann, by Blucher's orders, kept Grouchy well employed, and took care to prevent his return to Waterloo. [Illustration: WATERLOO VIEWS.] [Illustration: QUATRE BRAS. FROM THE PAINTING BY VEREKER M HAMILTON, R.E.] [Illustration: MARSHAL BLUCHER. (_From the Portrait by Sir Thomas Lawrence, P.R.A._)]