'... About six o'clock, however, I learnt that the cavalry in the centre had suffered dreadfully, and the Prussians about that time having formed to my left, I took upon myself to move off from our left, and halted directly to the centre of our line, where I arrived most opportunely at the instant that Bonaparte was making his last and most desperate effort; and never did I witness anything so terrific--the ground actually covered with dead and dying, cannon-shot and shells flying thicker than I ever heard even musketry before, and our troops some of them giving way. In this state of affairs, I wheeled my brigade into line, close (within ten yards) in the rear of our infantry, and prepared to charge the instant they had retreated through my intervals (the three squadron officers of the 10th were wounded at this instant); this, however, gave them confidence, and the brigades that were literally running away halted on our cheering them, and again began firing. The enemy on their part began to waver; the Duke observed it, and ordered the infantry to advance. I immediately wheeled the brigade by half-squadrons to the right and in column over the dead and dying, trotted round the right of our infantry, passed the French infantry, and formed lines of regiments on the first half-squadrons. 'With the 10th I charged a body of French Cuirassiers and Lancers infinitely superior to them, and completely routed them. I then went to the 18th, and charged a second body that was supporting a square of Imperial Guards; and the 18th not only defeated them, but took fourteen pieces of cannon that had been firing grape at us during our movement. I then, with the 10th, having re-formed them, charged a square of infantry (Imperial Guards), the men of which we cut down in the ranks; and here the last shot was fired. From this moment all was _de route_. 'Whether the Duke will do my brigade justice or not, I know not; but Bonaparte has given them their due in his account. We are the cavalry that he alludes to, where at the end he says, "At eight o'clock," etc.; and the Colonel of the 3rd Chasseurs, who lodged the night before last in the house I occupied, last night told the proprietor "that two regiments of British Hussars decided the affair."[159] The third regiment (1st Hussars) I kept in reserve. 'Of course, our loss was severe. All those returned missing are since ascertained to have been killed. 'I never saw such a day, nor anyone else. I expect and hope that every soldier will bear a medal with "Mont St. Jean" on it. I would rather do so than be adorned by the brightest star that any potentate could bestow on me.... 'To Wynne Pendarves, Esq., 'No. 11, Queen Anne Street, London.'