From an industrial and historical point of view, the country falls into two divisions. Let a line be drawn from Hull, on the northeast coast, to Leicester, in the Midlands, and thence to Exmouth, on the southwest coast. (See map on p. 10.) On the upper or northwest side of that line will lie the coal and iron which constitute the greater part of the mineral wealth and form the basis of the manufacturing industry of England; here too are all the largest towns except London. On the lower or southeast side of the line there will be a comparatively level surface of rich agricultural land, and most of the fine old cathedral cities with their historic associations; in a world, the England of the past as contrasted with modern and democratic England, that part which has grown up since the introduction of steam. 10. Eastern and Western Britain compared. As the southern and eastern coasts of Britain were in most direct communication with the Continent, and were first settled, they continued until modern times to be the wealthiest, most civilized, and progressive part of the island. Much of the western portion is a rough, wild country. To it the East Britons retreated, keeping their primitive customs and language, as in Wales and Cornwall. In all the great movements of religious or political reform, up to the middle of the seventeenth century, we find that the people of the eastern half of the island were usually on the side of a larger measure of liberty; while those of the western half were generally in favor of increasing the power of the King and the Church. 11. Influence of the Island Form on the Roman Invasion Geologists tell us that Great Britain was once connected with the mainland of western Europe. It was fortunate for Britain that this connection was severed and that it became an island. We see an illustration of this advantage in the case of the Roman invasion. It was easy for the Romans to march great armies into Gaul and take complete possession of that country, but it was with no little difficulty that they sent fleets across the tempestuous waters of the Channel. This may have been one reason why they never succeeded in permanently establishing their language and their laws in the island of Britain. It is true that they conquered and held it for several centuries, but they never destroyed its individuality,--they never Latinized it as they did France and Spain. 12. Influence of the Island Form on the Saxon Invasion. In like manner, when the northern tribes of Europe overran the Roman Empire, they found themselves, in some measure, shut out from Britain by its wall of sea. The Jutes, Saxons, and Angles could not enter it in countless hordes, but only in small numbers and by occasional attacks. Because of this, the invaders could only drive back the Britons by slow degrees, and they never entirely crushed them.