It will be readily conceived that such assistance was most essential, when it is recollected that, at this time, the 7th Hussars, the 1st Light Dragoons of the King's German Legion, the Brunswick Hussars, and the Squadron of Brunswick Lancers, were the only Cavalry Regiments posted in rear of that portion of the Front Line extending from the Nivelles road on the right, to the position of HALKETT's British Infantry Brigade on the left, in rear of which latter stood the 23rd Light Dragoons. The manner in which those Regiments charged and repelled the French Cavalry opposed to them, merits the highest commendation. The French Cavalry evinced the greatest alacrity, nay, impatience, in again getting into order--actuated, no doubt, by a sense of shame and indignation at finding its efforts frustrated, and its valour fruitless; although in possession of the Enemy's guns, and at liberty to act at its own discretion against his Squares. The advance was speedily renewed; but evidently conducted with more caution, though not with less enthusiasm. Again did this brilliant array of horsemen boldly face the iron shower of grape, and gallantly crown the crest of the Anglo-Allied Right Wing. But now, instead of attacking indiscriminately as before, one portion was allotted to that service; whilst the remainder was kept in more compact order to stem the onset of the Allied Cavalry, by which, on the former occasion, they had been so signally repulsed. The charges were repeated against the Squares, in the same style, and upon the same system, as before; and with an equally fruitless result. This portion of the attacking force became gradually exhausted and out of order: but the remainder appeared well formed up, and moving forward to charge the Second Line comprising Allied Cavalry; which, however, did not wait for the attack, but instantly advanced to meet it. The latter consisted of SOMERSET's Brigade on the left (greatly diminished by the effects of its former charge, on the occasion of the French attack of the Allied Left and Centre); of the 23rd British Light Dragoons, in rear of HALKETT's British Infantry Brigade; of TRIP's Dutch-Belgian Carabinier Brigade, in rear of the 23rd; of the Brunswick Hussars and Lancers, more to the right; of the 1st Light Dragoons of the King's German Legion, close to the Nivelles road; and of the 7th British Hussars, on the interior slope of that portion of the ridge which was immediately in left rear of Hougomont--a force scarcely amounting to half the number of Squadrons with which the French Cavalry had commenced this attack. The charge was executed under great excitement, and with the utmost steadiness and gallantry. The struggle was desperate and sanguinary: but the French Cavalry, assailed in front by the same description of force, and on their flanks by the fire from the Squares, at length went about; and were followed, as before, over the ridge and down the exterior slope.