SIR,--I have the honour to report to you, for the information of the Lieutenant-General Whitelocke, that the advanced corps under my command, consisting of three companies of the 95th light battalion, 36th and 38th regiments, with two 3 and two 6-pounders, advanced from the position I had taken up in front of the village of Reduction; and, after making a considerable detour from the badness of the roads, I crossed the _Chuello_ at the _Chico_ Pass; from thence I continued my route, though very strongly enclosed, and difficult ground, till the head of the column arrived at the junction of two roads, about 500 yards from the Canal of _Miserala_. At the same moment that we discovered the enemy, they commenced a heavy, though, after the first round, not well-directed fire of shot and shells, my artillery having been left in the rear, under the protection of three companies of Brigadier-General Lumley’s brigade, owing to the inability of the horses to bring it up at the same rate at which the infantry marched. I directed an immediate attack to be made on their left flank with the bayonet, which was executed by Brigadier-General Craufurd in the most perfect manner, with his brigade, and he was so well seconded by the gallantry of Lieutenant-Colonel Pack and Major Travers, the officers and men of the 95th, and light battalion, that in five minutes the enemy’s force, though strongly posted behind hedges and embankments, gave way, leaving about 60 killed and 70 prisoners, with all their artillery, consisting of nine guns, one howitzer, three tumbrels with limbers complete. I beg to state that the conduct of every officer and soldier engaged was admirable; and that I am also under great obligation to Brigadier-General Lumley, for his exertions to take a share in the action, but which alone the very exhausted state of his regiments, from the severity of the march, prevented. Immediately after I formed, I found that he had taken a good position on the right of the light brigade, to support it in case of re-attack. I am happy to add our loss has been but trifling, not exceeding 14 rank and file killed, 5 officers, and 25 rank and file wounded. The exact returns I have not been able to obtain.--I have the honour to be, &c. (Signed) J. LEVISON GOWER, Major-General. Lieutenant-Colonel Torrens, Military Secretary. II. Extract of a Letter from Sir S. Achmuty to Mr. Wyndham.