The estimate of the enemy's strength made by the reconnaissance of the 24th was not inaccurate, but the fact was that the situation had been entirely changed by the arrival of Prinsloo with large reinforcements later on that afternoon. The exact numbers of the Boers engaged in this fight are, as in other cases, difficult to state with any precision, but they were probably not less than about 2,300 men, with three Krupp guns and two pom-poms. This force was disposed as follows:--General De la Rey's commando of Transvaalers, consisting of 700 men and two Krupp guns, held the northern end of the kopjes on the western flank, and was therefore on the north-western side of the railway. Next on the western central kopje to the south-east of the railway came the Winburg commando, about 250 with a Krupp gun, under Commandant Jourdaan. These three Krupp guns were, however, controlled by Major Albrecht, the officer commanding the Free State artillery. The long kopje, at the southern end of which the western meets the southern face, was held by the Bloemfontein commando, 500 strong, under General J. Prinsloo. East of him, in the centre of the front face, was placed the Jacobsdal commando, 300 strong, under Commandant Lubbe. The eastern razor-backed kopje, which formed the left flank and part of the frontal defence, was assigned to detachments of the Bloemfontein, Hoopstad, and Fauresmith commandos under Commandants P. Fourie and H. van der Venter. Two pom-poms were mounted on this side of the defences. It will be seen from map 11 that the Graspan ground differed in a marked way from the majority of the positions selected by the Boers, being salient instead of re-entrant. It did not, therefore, lend itself readily to the adoption of those enveloping tactics which their forefathers learnt originally from the Zulus. Prinsloo sought to remedy this defect by ordering up from Ramdam a detachment to menace the eastern flank of the British advance. [Sidenote: Boer strength involves attack instead of mere shelling.] It was now seen that the enemy available for the defence of the main position was too strong to be driven out there from by a brief artillery bombardment, and it soon became clear to the British Commander that an attack in due form had become necessary. Lord Methuen determined, therefore, to direct the 9th brigade to go forward and carry the kopjes. The artillery was to prepare the way for attack at closer range, while the Guards' brigade was ordered to come up in support and to hold the right flank, the presence of the Ramdam detachment to the south-east having already been discovered by the mounted troops. [Sidenote: 7.15 a.m. 18th battery prepares for infantry attack on south-east. One section (two guns) against eastern face.] [Sidenote: 2 companies L.N.L., halted before eastern kopje, await 9th brigade.]