"Before Alfred's son Edward died, the whole of Mercia was incorporated with his immediate dominions. The way in which the thing was done was more remarkable than the thing itself. Like the Romans, he made the fortified towns the means of upholding his power. But unlike the Romans, he did not garrison them with colonists from amongst his own immediate dependents. He filled them, as Henry the Fowler did afterwards in Saxony, with free townsmen, whose hearts were at one with their fellow countrymen around. Before he died in 924, the Danish chiefs in the land beyond the Humber had acknowledged his overlordship, and even the Celts of Wales and Scotland had given in their submission in some form which they were not likely to interpret too strictly. His son and his two grandsons, Athelstan, Edmund, and Edred completed the work, and when after the short and troubled interval of Edwy's rule in Wessex, Edgar united the undivided realm under his sway in 958, he had no internal enemies to suppress. He allowed the Celtic Scottish King who had succeeded to the inheritance of the Pictish race to possess the old Northumbrian land north of the Tweed, where they and their descendants learned the habits and speech of Englishmen. But he treated him and the other Celtic kings distinctly as his inferiors, though it was perhaps well for him that he did not attempt to impose upon them any very tangible tokens of his supremacy. The story of his being rowed by eight kings on the Dee is doubtless only a legend by which the peaceful king was glorified in the troubled times which followed. Such a struggle, so successfully conducted, could not fail to be accompanied by a vast increase of that kingly authority which had been on the growth from the time of its first establishment. The hereditary ealdormen, the representatives of the old kingly houses, had passed away. The old tribes, or--where their limitations had been obliterated by the tide of Danish conquest, as was the case in central and northern England--the new artificial divisions which had taken their place, were now known as shires, and the very name testified that they were regarded only as parts of a greater whole. The shire mote still continued the tradition of the old popular assemblies. At its head as presidents of its deliberations were the ealdorman and the bishop, each of them owing their appointment to the king, and it was summoned by the shire-reeve or sheriff, himself even more directly an officer of the king, whose business it was to see that all the royal dues were paid within the shire. In the more general concerns of the kingdom, the king consulted with his Witan, whose meetings were called the Witenagemot, a body, which, at least for all ordinary purposes, was composed not of any representatives of the