The British general through his spies had information of those projects. To allow the projected concentration to be effected would involve serious disadvantages, and both experience and temperament enjoined on Roberts the offensive. The Logur contingent was regarded as not of much account, and might be headed back by a threat. Mahomed Jan's force, which was reckoned some 5000 strong, needed to be handled with greater vigour. Meer Butcha and his Kohistanees were less formidable, and might be dealt with incidentally. Roberts took a measure of wise precaution in telegraphing to Colonel Jenkins on the 7th December to march his Guides (cavalry and infantry) from Jugdulluk to Sherpur. On the 8th General Macpherson was sent out toward the west with a column consisting of 1300 bayonets, three squadrons, and eight guns. Following the Ghuznee road across the Chardeh valley, he was to march to Urgundeh, in the vicinity of which place it was expected that he would find Mahomed Jan's levies, which he was to attack and drive backward on Maidan, taking care to prevent their retreat to the westward in the direction of Bamian. On the following day General Baker marched out with a force made up of 900 infantrymen, two and a half squadrons, and four guns, with instructions to march southward toward the Logur valley, deal with the tribal gathering there, then bend sharply in a south-westerly direction and take up a position across the Ghuznee road in the Maidan valley on the line of retreat which it was hoped that Macpherson would succeed in enforcing on Mahomed Jan. In that case the Afghan leader would find himself between two fires, and would be punished so severely as to render it unlikely that he would give further trouble. To afford time for Baker to reach the position assigned to him Macpherson remained halted during the 9th at Aushar, a village just beyond the debouche of the Nanuchee Pass, at the north-western extremity of the Asmai heights. On that day a cavalry reconnaissance discovered that the Kohistanee levies in considerable strength had already gathered about Karez Meer, some ten miles north-west of Cabul, and that masses of Afghans presumably belonging to the force of Mahomed Jan were moving northward in the Kohistan direction, apparently with the object of joining Meer Butcha's gathering at Karez. It was imperative that the latter should be dispersed before the junction could be effected, and Sir Frederick Roberts had no option but to order Macpherson to alter his line of advance and move against the Kohistanees. Necessary as was this divergence from the original plan of operation, it had the effect of sending to wreck the combined movement from which so much was hoped, and of bringing about a very critical situation. If Lockhart's reconnaissance had been made a day earlier, Macpherson might probably have utilised to good purpose by dispersing the Kohistanees, the day which as it was he spent halted at Aushar. He might have accomplished