Aware of these great preparations, the Scots, under the encouragement and direction of their governor, laboured incessantly to be in a situation to render them unavailing.  By Crab, the Flemish engineer, machines similar to the Roman catapult, moving on wheels, and of enormous strength and dimensions, were constructed and placed on the walls at the spot where it was expected the sow would make its approach.  In addition to this, they fixed a crane upon the rampart, armed with iron chains and grappling hooks, and large masses of combustibles and fire-faggots, shaped like tuns, and composed of pitch and flax, bound strongly together with tar ropes, were piled up in readiness for the attack.  At different intervals on the walls were fixed the espringalds for the discharge of their heavy darts, which carried on their barbed points little bundles of flaming tow dipped in oil or sulphur; the ramparts were lined by the archers, spearmen, and crossbows; and to each leader was assigned a certain station, to which he could repair on a moment’s warning.

Having inspected his whole works, the steward cheerfully and confidently awaited the attack; to which the English moved forward in great strength, and led by the king in person, on the 13th of September.  Irritated by their late repulse, and animated by the presence of their nobility, the different squadrons rushed forward with an impetuosity which at first defied all efforts to repel them; so that the ladders were fixed, the ditch filled up by fascines, and the ramparts attacked with an impetuous valour which promised to carry all before it.  But the Scots, who knew their own strength, allowed this ebullition of gallantry to expend itself; and, after a short interval advanced with levelled spears in close array, and with a weight and resolution which effectually checked the enemy.  Considerable ground, however, had been gained in the first assault; and the battle was maintained, from sunrise till noon, with excessive obstinacy on both sides; but it at last concluded in favour of the resolution and endurance of the Scots, who repulsed the enemy on every quarter, and cleared their ramparts of their assailants.  At this moment, by Edward’s orders, the sow began its advance towards the walls; and the cran, or catapult, armed with a mass of rock, was seen straining its timbers, and taking its aim against the approaching monster.  On the first discharge the stone flew far beyond; and, as its conductors hurried forward the immense machine, the second missile fell short of it.  A third block of granite was now got ready, and an English engineer who had been taken prisoner was commanded, on pain of death, to direct the aim; whilst the sow was moving forward with a rapidity which in a few seconds must have brought it to the foot of the walls.  All gazed on for an instant in breathless suspense,—­but only for an instant.  The catapult was discharged,—­a loud booming noise in the air accompanied the progress