At break of day, (at that time of the year about two o'clock) some persons were perceived on the top of a hill westward of the town. Immediate notice of this was given to the Officer commanding, who directed that the horse-guard should continue to observe the motions of the enemy; and should their numbers encrease, to retreat slowly, about two hundred yards in front to the town, and apprize him of the same. It soon appeared that their force was between three and four thousand divided into bands, from sixty to an hundred, in regular order, with different kinds of Arms, principally pikes, from five to ten feet long, pitch-forks, &c. Each band moved separately headed by an Officer, distinguished by a green sash or cockade--most of the men had white paper bands round their hats. It was generally remarked that they had all clean shirts on, had each a piece of oat-bread in their pockets, and many were apparently intoxicated. The town (the subject of this letter) has not been remarkable for loyalty--the principal fears of the garrison arose from an apprehension of treachery. There were then under arms sixty of the Northumberland Fencibles, about thirty of the Fertullagh Cavalry, and thirty loyal Protestants, who either belonged to the town or had fled there for refuge. On the first appearance of the Rebels, (three hours before the attack commenced) an express was sent to Tullamore where the principal part of the 7th Dragoons lay--General Dunne forwarded a Troop about eighty in number--the want of a sufficient force was of the worst consequence, as the Rebels attacked our party in the mountains, and obliged the Fencibles to retreat back to the town--Meantime the Loyalists cleared the streets which were now full of Rebels without the loss of a man--the Cavalry pursued--Sergeant Price alone killed fourteen Pikemen. On hearing the firing a few of the Cavalry stationed at Tyrell's-pass flew to the scene of action, just before the Black Horse arrived--both, aided by the dismounted from Tyrrell's-pass killed 400 of the enemy. Yours, &c. C. F. The Publisher having waited in vain for a detail of the engagement at Naas, Kilcullen, Hacketstown, &c; and public curiosity daily encreasing, being desirous of gratifying the same, he deems it most advisable to insert the following OFFICIAL ACCOUNTS received at the Castle, with their dates. * * * * * _Extract of a Letter from Lord Viscount Gosford, Colonel of the Armagh Militia, and Major Wardle, of the Ancient British Light Dragoons, to Lieutenant General Lake, dated Naas, Thursday Morning, 8 o'Clock, 24th May, 1798._