southern coast, on the Welsh frontier, and along a series of walls or dikes running across the island from the Tyne to Solway Firth. Excellent roads were constructed through the length and breadth of the land for the use of this military body and to connect the scattered stations. Along these highways population spread and the remains of spacious villas still exist to attest the magnificence of the wealthy provincials. The roads served also as channels of trade by which goods could readily be carried from one part of the country to another. Foreign as well as internal trade became extensive, although exports were mostly of crude natural products, such as hides, skins, and furs, cattle and sheep, grain, pig-iron, lead and tin, hunting-dogs and slaves. The rapid development of towns and cities was a marked characteristic of Roman Britain. Fifty-nine towns or cities of various grades of self-government are named in the Roman survey, and many of these must have been populous, wealthy, and active, judging from the extensive ruins that remain, and the enormous number of Roman coins that have since been found. Christianity was adopted here as in other parts of the Roman Empire, though the extent of its influence is unknown. During the Roman occupation much waste land was reclaimed. Most of the great valley regions and many of the hillsides had been originally covered with dense forests, swamps spread along the rivers and extended far inland from the coast; so that almost the only parts capable of tillage were the high treeless plains, the hill tops, and certain favored stretches of open country. The reduction of these waste lands to human habitation has been an age-long task. It was begun in prehistoric times, it has been carried further by each successive race, and brought to final completion only within our own century. A share in this work and the great roads were the most permanent results of the Roman period of occupation and government. Throughout the fourth and fifth centuries of the Christian era the Roman administration and society in Britain were evidently disintegrating. Several successive generals of the Roman troops stationed in Britain rose in revolt with their soldiers, declared their independence of Rome, or passed over to the Continent to enter into a struggle for the control of the whole Empire. In 383 and 407 the military forces were suddenly depleted in this way and the provincial government disorganized, while the central government of the Empire was so weak that it was unable to reestablish a firm administration. During the same period barbarian invaders were making frequent inroads into Britain. The Picts and Scots from modern Scotland, Saxon pirates, and, later, ever increasing swarms of Angles, Jutes, and Frisians from across the North Sea ravaged and ultimately occupied parts of the borders and the coasts. The surviving records of this period of disintegration and reorganization are so few that we