This circumstance serves to show, even if history had not made us acquainted with the same fact, that the Highlanders had never been accustomed to make war with the view of permanent conquest, but only with the hope of deriving temporary advantage, or deciding some immediate quarrel.

It also explains the reason why Montrose, with all his splendid successes, never obtained any secure or permanent footing in the Lowlands, and why even those Lowland noblemen and gentlemen, who were inclined to the royal cause, showed diffidence and reluctance to join an army of a character so desultory and irregular, as might lead them at all times to apprehend that the Highlanders securing themselves by a retreat to their mountains, would leave whatever Lowlanders might have joined them to the mercy of an offended and predominant enemy.

The same consideration will also serve to account for the sudden marches which Montrose was obliged to undertake, in order to recruit his army in the mountains, and for the rapid changes of fortune, by which we often find him obliged to retreat from before those enemies over whom he had recently been victorious.

If there should be any who read these tales for any further purpose than that of immediate amusement, they will find these remarks not unworthy of their recollection.
It was owing to such causes, the slackness of the Lowland loyalists and the temporary desertion of his Highland followers, that Montrose found himself, even after the decisive victory of Tippermuir, in no condition to face the second army with which Argyle advanced upon him from the westward.

In this emergency, supplying by velocity the want of strength, he moved suddenly from Perth to Dundee, and being refused admission into that town, fell northward upon Aberdeen, where he expected to be joined by the Gordons and other loyalists.