POSTSCRIPT.

SATURDAY.

Before daybreak this morning, General Simpson's despatch, describing the assault upon Sebastopol, was published in a Gazette Extraordinary ; Major Curzon having reached London in the course of the night.

General Simpson to Lord Panmure.

"Before Sebastopol, September 9, 1855.

"My Lord-1 had the honour to apprize your Lordship, in my despatch of the 4th instant, that the Engineer and Artillery officers of the Allied Armies had laid before General l'elissier and myself a report recommending that the assault should be given on the 8th instant, after a heavy fire had been kept up for three days. This arrangement I agreed to ; and I have to congratu- late your Lordship on the glorious results of the attack of yesterday, which has ended in the possession of the town, dockyards, and public buildings, and destruction of the last ships of the Russian fleet in the Black Sea. Three steamers alone remain, and the speedy capture or sinking of these must speedily follow. "It was arranged that at twelve o'clock in the day the French columns of attack were to leave their trenches, and take possession of the Malakoff and adjacent works. After their success had been assured and they were fairly established, the Redan was to be 'assaulted by the English; the Bastion, Oentral, and Quarantine Forts, on the left, were simultaneously to be at- tacked by the French. At the hour appointed, our allies quitted their trenches; entered and carried the apparently impregnable defences of the Malakoff with that impetuous valour which characterizes the French attack ; and, having once obtained possession, they were never dislodged. The tri- eider planted on the parapet was the signal for our -troops to advance. The arrangements for the attack I intrusted to Lieutenant-General Sir Wil- liam Codrington, who carried out the details in concert with Lieutenant. General Markham. I determined that the Second and Light Divisions should have the honour of the assault, from the circumstance of their having defended the batteries and approaches against the Redan for so many mdnths and from the intimate knowledge they possessed of the ground. "The fire Of our artillery having made as much of a breach as possible in the salient of the Redan, I decided that the columns of assault should be di- rected against that part, as being less exposed to the heavy flanking fire by which this work is protected. It was arranged between Sir W. Codrington and Lieutenant-General Markham that the assaulting column of 1000 men should be formed by equal numbers of these two divisions; the column of the Light Division to lead, that of the Second to follow. They left the trenches at the preconcerted signal, and moved across the ground preceded by a covering-party of 200 men and, a ladder-party of 320. On arriving at the crest of the ditch, and the ladders placed, the men immediately stormed the parapet of the Redan, and penetrated into theealient angle. A most de- termined and bloody contest was here maintained for nearly an hour ; and, although supported to the utmost, and the greatest bravery displayed, it was found impossible to maintain the position.

"Your Lordship will perceive, by the long and sad list of casualties, with what gallantry and self-devotion the officers so pobly placed themselves at the head of their men during this sanguinary conflict. I feel myself unable to express in adequate terms the sense I entertain of the conduct and gal- lantry exhibited by the troops, though their devotion was not rewarded by the success which they so well merited ; but to no one are my thanks more justly due than to Colonel Windham, who gallantly headed his column of attack, and was fortunate in entering and remaining with the troops during the contest.

"The trenches were, subsequently to this attack, so crowded with troops that I was unable t organize a second assault, which I intended to make with the Highlanders under Lieutenant-General Sir Colin Campbell, who had hitherto formed the reserve, to be supported by the Third Division under Major-General Sir William Eyre. I therefore sent for these officers, and arranged with them to renew the attack the following morning. The High- land Brigade occupied the advanced trenches during the night. About eleven o'clock the enemy commenced exploding their magazines ; and Sir Cohn Campbell having ordered a small party to advance cautiously to ex- amine the Redan, found the work abandoned : he did not, however, deem it necessary to occupy it until daylight. "The evacuation of the town by the enemy was made manifest during the night. Great fires appeared in every part, accompanied by large explo- sions, under the cover of which the enemy succeeded in withdrawing their troops to the North aide by means of the raft-bridge recently constructed, and which they afterwards disconnected and conveyed to the other side. Their men-of-war were all sunk during the night. "The boisterous weather rendered it altogether impossible for the Admirals to fulfil their intention of bringing the broadsides of the Allied Fleets to bear upon the Quarantine Batteries ; but an excellent effect was produced by the animated and well-directed fire of their mortar-vessels, those of her Majesty being under the direction of Captain Wilcox, of the Odin, and Captain Digby, Of the Royal Marine Artillery, "It now becomes my pleasing duty, my Lord, to place on record the high sense I entertain of the conduct of this army since I have had the honour to command it. The hardships and privations endured by many of the regi- ments during a long winter campaign are too well known for me to comment upon. They were borne both by officers and men with a patience and un- murmuring endurance worthy of the highest praise, and which gained them the deserved applause and sympathy of their country. "The Naval Brigade under the command of Captain the Honourable Henry Keppel, aided by Captain Mooraom, and many gallant officers and sea- men who have served the guns from the commencement of the siege, merit ruY warmeat thanks. The prompt, hearty, and efficacious cooperation of her Majesty 'a Navy, commanded by Rear-Admiral Sir Edmund Lyons, and ably seconded by Sir Houston Stewart, has contributed most materially to the gaccess of our undertaking. And here perhaps I may be permitted to say, tliat if it had pleased God that the successful result of this memorable siege should have been reported by my ever-to-be-lamented predecessor in this command, I am sure that-it would have been one of hia most pleasing duties

to express the deep sense which I know he entertained of the invaluable as siatance and counsel he received on all occasions from Sir Edmund Lyons. When at times affairs looked gloomy and success doubtful, he was at hand to cheer and encourage ; and every assistance that could tend to advance the operations was given with the hearty good-will which characterizes the Bri- tish sailor. Nothing has contributed more to the present undertaking than the cordial cooperation which has so happily existed from the first between the two services.

"I cannot sufficiently express my approbation of the conduct of the Royal Engineers under Lieutenant-General Sir Harry Jones, who has conducted the siege operations from the beginning of this year. For some time past he has been suffering on a bed of sickness, but the eventful hour of the as- sault would not permit him to remain absent; he was conveyed on a litter into the trenches to witness the completion of his arduous undertakings. My warmest thanks are due to the officers and soldiers of the Royal Artillery, under the command of Major-General Sir R. Decree, who, during the ar- duous operations of this protracted siege, have so mainly contributed to its ultimate success.

"I must beg further to record my thanks for the cordial cooperation and assistance I have received in carrying out the details of the service from the Chief of the Staff, the Adjutant and Quartermaster-Generals, and General Staff, as well as generals commanding divisions and brigades of this army. I must reserve to myself, for the subject of a future despatch, bringing be- fore your Lordship the particular mention of officers of the various branches of this army, whom I shall beg to recommend to your favourable notice. "I intrust this despatch to the care of Brevet-Major the Honourable Lei- cester Curzon, who has been Assistant Military Secretary to my noble pre- decessor and myself since the commencement of this war, and who will be able to give your Lordship more minute details than the limits of a despateh will allow.

"I have, arc. JeatES grarrSON, General Commanding."

The list of casualties enclosed consists only of that of the officers, whose names were supplied last week from a telegraphic message to Lord Panmure. That list was correct with few exceptions. Captain Hutton, 97th, reported killed, is " missing " Lieutenant H. ht. Vaughan, 90th, reported severely wounded, also "missing." Among the omissions in the former list are— Lieutenant B.. Swire, 17th, Captain W. J. Gillum, let, Ensign R. PeacheY, 3d—dangerously wounded- Captain J. R. Hume, 55th, Ensign W. W. Young, 19th—severely wounded; Lieutenant C. J. Moorsom, 30th Captain W. 8. Richards, 55th, Captain J. N. Sargent, 95th, Lieutenant A. Hamilto 41st, Lieutenant W. Bring, 62d, Ensign G. Toseland, 33d, Lieutenant L W. Rous, 90th, Ensign 3. E. D. Hill, 97th—slightly wounded. In the former list, the name Captain " Twiling," 90th, should have been Captain " Tinling," 90th; Lieutenants L Laurie and N. Harris belong to the 44th, not the 34th; "Ensign A. Martin, 11th," should have been Lieu- tenant R. C. Martin, 19th; and "Lieutenant Wallis, 33d," should have been Lieutenant Willis, 33d.

"War .Department, September 22.—Lord Panmure having, in consequence of numerous inquiries, asked General Simpson to report upon the condition of the wounded officers, has received by telegraph, dated 20th instant, 8 a. m., a satisfactory account of their progress towards recovery."

In a despatch dated September 19, published this morning by the Koniteur, Marshal Pelissier says— "Of the 4000 cannon found at Sebastopol at least 60 are of brass. Others were thrown into the roadstead at the time of the retreat. I have ordered them to be sought for. We have already taken 200,000 kilogrammes of powder away from the place, and there is still more to be found. The num- ber

of projectiles will exceed 100,000.'"

Admiral Bruat forwards a despatch, showing the well-tuned and destruo- five activity of the flotilla in the Sea of Azoff between the 6th and 11th September.