In the course of the evening several false alarms electrified the inhabitants here--Yet the Garrison was left the whole day at rest. Next morning Sir C. Asgill marched with a large force, consisting of two pieces of Artillery, part of the Wexford and Wicklow regiments, of the 4th, 5th, and 9th, Dragoons, of Hompesch's Cavalry, the Romney Fencibles, and of the Kilkenny, Gowran, Fassadineen Shillelogher, Desart, Thomastown, Myshall, and Kellishin Cavalry, he was joined on the march by the Leighlin-bridge Infantry, and part of the Downshire Militia, with their Artillery, also the Maryborough and Ballyfin Corps of Yeomen Cavalry. About six o'Clock he came up with the Rebel Army, amounting to from five to six thousand men, advantageously posted on a rising ground, in an extensive flat, at Kilcomny, near Gore's-Bridge--nothing could exceed the joy of our brave Soldiers, after so many fatiguing marches, at last to have a pleasing prospect of retaliating; the Officers were constantly obliged to restrain their ardour. The engagement began with a terrible fire of Artillery, which the Rebels returned with quickness, but entirely without effect. A very hot fire was kept up near an hour, but unable to withstand the impetuosity of our troops the Rebels began to give way, and fled towards the Co. Wexford. A horrible slaughter now ensued, which lasted six or seven hours, nor did it cease while a Rebel was to be seen--1100 Rebels were left dead on the field of Action! among whom was the _invulnerable commander Murphy_. This victory was so very decisive that we have got possession of all their Artillery, amounting to 15 pieces of different callibre--all their Standards, Ammunition, and Baggage, a vast number of Pikes, Muskets, Swords, &c. 700 horses, a great quantity of black cattle, Sheep, &c. also a vast quantity of bedding, blanketting, and wearing apparel which were given up to the Soldiers who bravely contended for the same. Yours, &c. &c.---- LETTER V. MARYBOROUGH, APRIL 20th, 1799. _My Dr. Friend_, Being desirous of making public the valour of the Troops of this town under the command of Major Matthews of the Royal Downshire Regiment, against the Rebels, I send you a plain narrative of facts as follows: