Generals Hill and Nightingale advanced against the front, which was of singular strength, and only to be approached by narrow paths winding through deep ravines. A swarm of skirmishers starting forward, plunged into the passes, and spreading to the right and left, won their way with extreme difficulty among the rocks and tangled evergreens that overspread the steep ascent; with still greater difficulty the supporting columns followed, and their formation was soon disordered in the confined and rugged passes. The hollows echoed with a continued roll of musketry; the shouts of the advancing troops were loudly answered by the enemy, and the curling smoke that broke out from the sides of the mountain marking the progress of the assailants, showed how stoutly the defence was maintained. Laborde, watching anxiously for the arrival of Loison, gradually slackened his hold on the left, but clung tenaciously to the right, in the hope of yet effecting a junction with that general. The ardour of the 9th and 29th regiments, who led the attack, favoured this skilful conduct. They pressed forward with such vigour, as to force the two strongest passes and reach the plain above, long before the flank movements of Ferguson and Trant had shaken the credit of the position, the 29th first arrived in disorder at the top; ere they could form, a French battalion came forward at a rapid pace, poured in their fire, and breaking gallantly through the midst of the English regiment, slew the colonel and many others, and made the major and fifty or sixty men prisoners; but the 29th were not to be overthrown. They rallied, and being joined by the 9th, the colonel of which also fell in this bitter fight, maintained their dangerous footing. Laborde, who brought every arm into action at the proper time and place, made repeated efforts to destroy these regiments before they could be supported; failing in that, he yet gained time to withdraw his left wing and to rally it upon the centre and right; but the English troops were gathering thickly on the upper ground, and general Ferguson, who had at first taken an erroneous direction towards the centre, now regained the true line, and was rapidly passing the right flank of the position. The French general, seeing that the day was lost, commenced a retreat by alternate masses, protecting his movements by vigorous charges of cavalry. At the village of Zambugeira he made another desperate stand, but the English troops bore on him too heavily to be resisted, and thus disputing the ground, he fell back to the Quinta de Bugagliera, there he halted until his detachments on the side of Segura had rejoined him, and then taking to the narrow pass of Ruña he marched all night to gain the position of Montechique, leaving three guns on the field of battle, and the road to Torres Vedras open for the victors. [Sidenote: Thiebault.] [Sidenote: Appendix, No. 19.]