It was about two o'clock when BYNG, perceiving the increased pressure upon the troops in the Orchard, and the great diminution which had taken place in their numbers, desired Colonel HEPBURN, who commanded the 2nd Battalion of the 3rd Foot Guards, to move down the slope with the remainder of his men as a reinforcement. Colonel HEPBURN on reaching the hollow way found it occupied by Lord SALTOUN with a very small force; and his Lordship having scarcely a man remaining of his own Battalion, gave over to the Colonel the command of that part of Hougomont, and rejoined MAITLAND's Brigade. After a short time, HEPBURN and his Battalion made a sudden and vigorous rush into the Great Orchard from the hollow way in its rear. The French Skirmishers gave way; and, as they crowded together while retreating through the gap that leads into the Wood, they suffered severely from the concentrated fire poured upon them by the Guards; who quickly established themselves along the front hedge of the Orchard. This happened nearly at the same time in which the French were repulsed in their grand attack upon the Centre and Left of the Duke of WELLINGTON's Line. It might be about half past two o'clock. The Battle was then limited to a general cannonade, the roar of which was incessant; and its effects, now that the range on both sides had been very accurately obtained, were most galling and destructive to the troops posted along the interior slope of either position. ALTEN's Light Troops again spread themselves out to the front as soon as KELLERMANN's _Cuirassiers_ had been swept from off the exterior slope of the Anglo-Allied position. They had not been out long before their attention was directed to a heavy Column of Infantry, apparently advancing from the vicinity of La Belle Alliance towards La Haye Sainte. It was BACHELU's Division, which had fallen back a little after the failure of D'ERLON's attack, to which it had acted as a Reserve. Lieutenant Colonel VIGOUREUX, of the 30th British Regiment, who commanded these Light Troops of ALTEN's Division, immediately threw them forward to meet the Column. They poured a well concentrated and most galling fire upon the mass; which immediately brought its right shoulders forward, and took the direction of Hougomont, either in consequence of that fire, or in accordance with Orders previously given.