THE 11th instant we encamped on this side Ballinaslo , along the River Suc : It was once this day resolved to have passed the River , and to march three Miles farther to Aghrim-Castle , where the Enemy was encamped , and to attack them , but the great Rain that fell this day , with other Obstacles , as of not perfectly viewing the Roads and Passes thither , occasioned our stay here . This Night Orders were given , that all our Arms should be discharged , and put in good Order ; That the whole Army should be at their Arms by two of the Clock the next morning , without either beat of Drum or sound of Trumpet ; Powder , Ball , &c. was delivered the same night to them .

The 12th , According to this Order of last Night , the Army marched through Ballinasloe , leaving only at the Camp Two Men of a Company to guard our Tents : After the Right Wing of Horse and Foot had passed , our Artillery , consisting of 30 Field-pieces , marched in three Divisions , ( viz. ) Two Demy-Culvering , Two short 6 Pounders , and Five 3 Pounders , for the Right Wing ; Two long 6 Pounders , Two short 6 Pounders , and Five 3 Pounders , for the Left Wing ; and Eight fortified 12 Pounders , and Four short ditto , for the Center or Body of the Army .

It took some time to draw the Army up , which about 11 a Clock at Noon was done , and every thing put in order to attack the Enemy in their Camp : 't was resolved to atrack them on the Right , Left , and Center , as the Three Roads in this Paper mark'd A. B. C. but the Road C. running so much to our Right , and taking so great a Turn about the Bog , with the Consideration of the Enemies Left Wing not extending farther than D. ( their Right was E. ) 't was resolved to attack only by the Road B. leading to their Right Wing , and the Road A. leading to the Pass ; this made some small Alteration in the Order of Battel , as the sending Three Squadrons from the Right Wing of the Second Line to the Left of the First Line , joyning the Right and Left Guns together for the Left : By 4 in the Afternoon the Duke of Wirtembergh marched the Left Wing by the Road B. which was much disputed him , the Enemy having all enclosed Ground to defend : At 7 a Clock he gained the Ground F. and the Enemy drew down to him ; at the same time Four Battalions passed over the Bog , and met with great opposition , the whole Body of the Enemies Foot pressing them very much ; Lieutenant-General Macoy , Major-General Talmash , with the Right Wing of Horse and Foot , pushed through the Pass under the Fire of the Castle ; 't was disputed half an hour , then we gained the Top of the Hill at H. which took the Enemy in the Rear , who now begin to be in some Confusion . The Fight lasted about two hours , sometimes with Advantage to the Enemy , they having once pushed the Four Battalions that went over the Bog , but in a quarter of an hour rallied again , which , with the Two Lines , advancing , put the Enemy in such disorder , that they entirely broke , and each made the best of their Heels ; the Horse got off best ; we pursued them four Miles , with a great Slaughter of the Foot , which in all probability is intirely ruin'd : By Computation , there lies dead upon the Field of Battel upwards of 5000 Men , with about 15000 Arms which they flung away ; their whole Artillery , ( sent them out of France , ) consisting of Nine Guns , with all the Tents and Baggage of their Army , is ours . Of their General Officers , Sarsfeild is only escaped ; St. Ruth is killed ; Major-General John Hamilton , Major-General Dorington , Brigadier Tute , Lord Bellew , Colonel Connel , Brigadier Gordan O-Neile , Lieutenant-Colonel Roberts , Lord Slane , Lord Kilmure , Lord Bussin , Colonel Butler , Colonel Grace , Major Lawless , Colonel Walter Bourke , Lieutenant-Colonel John Baggot , Lieutenant-Colonel Jo . Braodier , Major William Bourke , Major Edmund Bulter , with a great number of inferiour Officers , both of Horse and Foot , are Prisoners : We took also a great many Standards and Colours .