We have a similar history of matters in Scotland. Thus, not to go further back, an act passed immediately on the restoration of the Stuarts, empowered justices of peace to fix the rate of wages to be paid to labourers, workmen, or servants; and if they refused to work at the legal wages so established, they might be imprisoned and scourged. It was not an uncommon thing, at the commencement of the last century, to see advertisements in the newspapers for the apprehension of runaway servants. The power of the higher over the working-classes was so great, that at one time, before the idea of a traffic in negroes was suggested, young people were kidnapped even in the streets of cities, and sent out as slaves to the plantations. Instances have been given where their parents have seen them driven in herds on board ship, yet dared not interfere. The power which the landholders in Scotland possessed over their vassals, down to the middle of the eighteenth century, was a condition of things necessary to the two rebellions. The humble clansmen were not properly rebels; they were paying obedience to their chiefs, who possessed power over them almost unlimited. The notorious Lovat had managed to seduce an English servant to the Highlands, and when once there, the poor fellow found that he was a slave, and could not possibly escape. It was not until the present century that two classes of workmen in Scotland were emancipated from a species of slavery--colliers and saltmakers. It is startling to read of them in the work which is still the principal law authority in Scotland--_Erskine's Institute_. He speaks of them as 'necessary servants,' and says: 'In this class of necessary servants may be reckoned colliers, coal-bearers, salters, and other workmen necessary for carrying on of collieries and salt-works. These are by law itself, without any paction, bound, merely by their entering upon work, in a colliery or salt-manufactory, to the perpetual service thereof; and if the owner sell or alienate the ground on which the works stand, the right of the service of these colliers, salters, &c., passes over to the purchaser.' What was this but modified slavery?--and the consideration that it actually existed within Great Britain until a recent period, and excited no sort of compassion, should temper any observations we might be inclined to make on the subject of slavery in distant countries.