Of the features mentioned, the Bridle Drift on the west, the iron road-bridge in the centre, and Hlangwane Hill on the east, are the principal points to remember. On the British side of the river, a plain sloped gradually down to the southern bank from a distance of two or three miles. It was divided north and south by a slight swell in the ground, flat-topped, of height just sufficient to conceal men on one side of it from those {p.225} on the other. On the eastern edge of this rise, the railroad track ran north to the bridge. On the western side, and between 3000 and 4000 yards from Wylie, was placed the chief naval battery, the two 4.7-inch and four 12-pounders. Between these and the railroad was to advance the central column of attack, the 2nd Brigade under General Hildyard. To the left rear of this, between it and the 5th Brigade--which, as before said, was directed upon the Bridle Drift--was placed the 4th, under Major General Lyttelton, charged with the duty of reinforcing either the 2nd or the 5th, as circumstances might demand during the progress of the fight. The 6th Brigade--Major-General Barton--was to advance on the east of the railroad, in general support of Hildyard. On this part of the field the ground was flat, but intersected by several dongas. Each extreme of the line of infantry formed by the four brigades was covered as usual by a flanking force, chiefly of horse; but while that on the British left had this function only, that on the right, the mounted brigade, with one battery--six guns--was {p.226} to attempt Hlangwane Hill. If successful, it was to enfilade the Wylie kopjes from that position. The remaining four batteries of field artillery were intended at the proper moment to concentrate their fire upon the Wylie kopjes, preparing the way for the crucial charge of the 2nd Brigade. For this object, two followed Lyttelton's 4th Brigade, and two the 6th; the last, under Colonel Long, being accompanied by six naval 12-pounders.