OCT. 10., ;14, T 1! N, WAR DIPARTVIENT, DOWNING-STRUM, OCT. 7. A dispatch, of which the following is a copy, has been received at Earl Bathurst's office, addressed to his Lordship by Lion.-General Omit Wallmoden, dated heati-quarters, Domitz, Sept. ‘tt) : Mt - LORD—Since my last report, dated Schwerin the 4th inst. Marshal Davoust continaed upon the river Stocknitz. Having moved to Domitr, I caused a bridge of boats to be there built across the Elbe, with a tete-de-pont, in order to pass the river as soon as the enemy should appear upon the left bank, although he remained combined with the Danes, with whom I imagined he had ceased to co-operate, in consequence of the late disjoined march of the French troops upon Ratzebnrgh, and of the Danes upon Lubeck ; the evenly continued contrary to my expectations, in a state of in activity for several days. I consequently once more made a move ment towards him, fixing my head-quarters at Hagenow on the 12th instant. But having been apprized, by intercepted letters, of Marshal Da voust's intention to detach eight or nitre thousand men, in order to cleat the left bank of the Elbe, and advance towards Magileborg, I cre , sed the river at midnight, on the 14th inst. near Domitz, tak ing the troops under my command, with the exception of the Swedes and Meekleuburgers, who remained in the position of Oravesud ben, and the Hanseatic legion, which I left with the infantry of Lntzow's corps on the right bank. On the ilith 1 occupied the p si tioh of Jetzel, near Datmenherg. In the mean time, Marshal Davonst bad detached the General of Division Pecheux, with the chief part of his division, which having passed the Elbe, had marched upon Dahlenburg. Late on the evening of the 13th, I was informed this force bad taken up the position of Gorde. On the following morning, the IGth, at day•break, I put the troops in motion. The enemy had occupied the heights in front of Gorde, on the Dannenberg road. I posted my troops in the-valley with the view of concealing my numbers from the enemy, as well as there to await his attack. l'owards mid-day, I received intelligence that he had but par tially ocenpied Gorde, and that the main part of his force was be tween the villages of ldendort and Eichstlorfs a quarter of a Ger man mile in rear of Gorde. No time was now to be lost in making the attaek. I caused the Hanoverian infantry, with two ;Potteries, to march under the command of Majar-General Lyon upon the great road leading to his Majesty's castle of Gorde, in order to attack the ene my in front ; General Tetteuborn forming the advanced-guard with three regiments of Cossacks. I directed at the same time six bat talions of infantry, one battery, and a regiment of hussars of the Russian German legion, to move under General Arentschildt, by the forest of Gorde, to turn the enemy's right flank, and I detached General Dornberg upon the enemy's left, towards llnbbelwald, at the head of the 3d hussars of the King's German legion, the hussars of EAnd, one battery of horse artillery, and the half of the rocket brigade. The enemy's outposts in the woods making little or no resistance retired to the. extremity of the fbrest, where, having pursued them, I found the enemy's corps very advantageously posted on a height in front of the Datmenberg road. At four in the afternoon our two columns were seen advancing out of the forest, and the enemy returned' but feebly the fire of our artillery with eight or ten pieces of cannon. Stu - prized at seeing a large hotly of infantry, while be imagined be had merely light troops to encounter, the enemy began to make a disposition for retiring, at the moment that onr battalions were forming for the attack. It is very probable be would have earlier determined upon retreating, but that General Pecheux, the Com mandant of this corps, was actually with the advanced posts in the forPst, at a distance rom his position, where he bad only time to arrive just when our troops were preparing to from against him. The enemy's left began to fall back—the right stood fast to cover its . retreat. This flank was formed upon the height in three columns of battalions, and made the most astonishing resistance, when at half-past five o'clock our infantry attacked two of those columns on all sides. The first and second battalions of this Ritssion German legion commenced a-very heavy fire at the distance ofninety paces,. At the same time the column of the Russian German legion ar rived at Nue side, and General Dornberg with the 3d hussars of the King's German legion, appeared on the other. The Ist regiment of hussars of the Russian German legion charging the enemy, broke one of his squares. The 30 hussars of the King's German legion eharged-with two squadrons another of these squares, which at a Lttk disSaucc was advancing at the pas de charge: These hussars EGISTER, broke its ranks, while they in their turn were assailed, in flank and • rear, by the enemy's artillery and infantry, posted in rear at some small distance. Forced to draw back a little, this rogiment, with two more squadrons, made a second charge, a nd soon after a third, with an intrepitlity nut to be surpassed. Meantime the light infantry of the battalion of Bremen, had em its first onset lost its commandant Major Devaux, and four officere. I instantly ordered a charge with the bayonet. The battalions of Langrehr and itenitiren, under the command of Brigadier Halket, carded it into effect with great intrepidity, forcing the enemy to re., treat, who seeing no other resource now remain but that of the most desperate resistance, formed anew in retiring, and re:mined a fire. The artillery in the interim, of the King's German Legion, under Major Brockman, arrived on our right, anti opened a well directed cannonade, seconded by the rocket brigade,. whose commandant had taken up his ground close tinder the fireorthe enemy's infantry. At this period, the greater part of the enemy's squares, terrified and broken on all sides, began to give way, and fled in all directions to the neighbouring heights, where the general disorder soon corn municated itself to those who had been placed tittle to cover the retreat. ' The attack and pursuit having been pushed as far as Nabendorf, the enemy saw himself cut off' from the road to Dahleuburgh and retired upon Bleckede, and the ensuing morning repassed the Elbe near Zollenspicker. General Pechenx having lost his horses and baggage, was forced to betake himself to flight on foot. Towards half past seven in the evening, I committed the pursuit of the flying enemy to the Cossacks, and assembled the troops, to whom the darkness of the night, an d the unfavourable nature of the ground, rendered the following of the fugitives quite impossible. I had besides received information that the enemy was advancing on the right bank of the river, in order to dislodge my detachment at Boitzenberg, and to approach Domitz and the bridge at the other side. The corps of the enemy, over which the troops under my orders have had so signalized a success, was from five to six thousand strong, including six hundred Cavalry, and ten pieces of artillery. loss is from fifteen hundred to two thousand .killed and wounded. The number of prisoners taken amounts to fifteen hundred, among whom is General Mielozinsky, two Aides-de•Camp of General Pe. cbeux, Colonel Fitz-James, and several other Officers. We have taken eight pieces of artillery and twelve ammunition waggons. Atter the action, General Tettenborn, with the advanced-guard occupied Meckede and Luneburg. I am entirely satisfied with the bravery of the troops • and I am particularly satis fi ed to Major-General Lyon, who has s hewn upon this occasion, the activity and intrepidity so well acknowledged in him ; as also to Brigadiers Halket and Martin, and to Major Bruck- man. The battalions of Langrehr and Bennigsen distinguished them• selves highly. General Dornberg led on the cavalry with all the spirit and vi• vacity so characteristic of that officer. I cannot sufficiently commend the bravery of the 3d regiment of Hussars of the King's German Legion, so conspicuous in their re ported charges, headed by their Commander Major Kuper; as like. wise that of the Ist Hussars of the Russian German Legion, on the enemy's squares. I lament that the glory which the first of the re. giments has gained is acquired with so considerable a loss. I should be glad that the attention of his Royal Highness the Prince Regent should be drawn upon the conduct of Major Kuper, in command of this regiment, at the head of which his gallantry was so very con• spicuous. I cannot omit to mention the services I have on this occasion re ceived from my Adjutant-General, Lieut.-Col. De Berger, and my .Quarter-Master-General Lieut.-Col. De Clansewitz.. I have also experienced the greatest assistance from my personal staff. Capt. de Grabbee, an officer" of the Russian guard, I have found extremely useful, as also Lieut.-Col. Count Ferdinand Kielmansegge. lam much indebted to Lient.-Gen. Count Louis Kielmansegge, for the assistance he has rendered me on all oceasiova. I beg in this place to draw the attention of your Lordship to a very brilliant affair. Count Frederick Kielmansegge, Colonel of a corps of Chasseurs, had some weeks since with the French, and which I have not had an opportunity of mentioning hitherto. It was in consevence of this affair, wherein the French lost npwaids of 150 prisoners, that we were already in possession of -oh , - ' and its vicinity, and found our light troops there, on the our main body. The loss sustained by the corps under my command ; nearly 50u men killed and wounded; among the former )anneuberkt arrival of amoontß to are P•liajor