This movement to the westward, on the part of the insurgents, brought on the battle of Sheriffmuir--indecisive, indeed, in its immediate results, but of which the Duke of Argyle reaped the whole advantage. In this action, it will be recollected that the right wing of the Highlanders broke and cut to pieces Argyle's left wing, while the clans on the left of Mar's army, though consisting of Stewarts, Mackenzies, and Camerons, were completely routed. During this medley of flight and pursuit, Rob Roy retained his station on a hill in the centre of the Highland position; and though it is said his attack might have decided the day, he could not be prevailed upon to charge. This was the more unfortunate for the insurgents, as the leading of a party of the Macphersons had been committed to MacGregor. This, it is said, was owing to the age and infirmity of the chief of that name, who, unable to lead his clan in person, objected to his heir-apparent, Macpherson of Nord, discharging his duty on that occasion; so that the tribe, or a part of them, were brigaded with their allies the MacGregors. While the favourable moment for action was gliding away unemployed, Mar's positive orders reached Rob Roy that he should presently attack. To which he coolly replied, “No, no! if they cannot do it without me, they cannot do it with me.” One of the Macphersons, named Alexander, one of Rob's original profession, _videlicet,_ a drover, but a man of great strength and spirit, was so incensed at the inactivity of this temporary leader, that he threw off his plaid, drew his sword, and called out to his clansmen, “Let us endure this no longer! if he will not lead you I will.” Rob Roy replied, with great coolness, “Were the question about driving Highland stots or kyloes, Sandie, I would yield to your superior skill; but as it respects the leading of men, I must be allowed to be the better judge.”--“Did the matter respect driving Glen-Eigas stots,” answered the Macpherson, “the question with Rob would not be, which was to be last, but which was to be foremost.” Incensed at this sarcasm, MacGregor drew his sword, and they would have fought upon the spot if their friends on both sides had not interfered. But the moment of attack was completely lost. Rob did not, however, neglect his own private interest on the occasion. In the confusion of an undecided field of battle, he enriched his followers by plundering the baggage and the dead on both sides. The fine old satirical ballad on the battle of Sheriffmuir does not forget to stigmatise our hero's conduct on this memorable occasion-- Rob Roy he stood watch On a hill for to catch The booty for aught that I saw, man; For he ne'er advanced From the place where he stanced, Till nae mair was to do there at a', man.