A third consequence of insular position, especially in early times, is isolation. An extreme case of isolation is presented by Egypt, which is in fact a great island in the desert. The extraordinary fertility of the valley of the Nile produced an early development, which was afterwards arrested by its isolation, the isolation being probably intensified by the jealous exclusiveness of a powerful priesthood which discouraged maritime pursuits. The isolation of England, though comparatively slight, has still been an important factor in her history. She underwent less than the Continental provinces the influence of Roman Conquest. Scotland and Ireland escaped it altogether, for the tide of invasion, having flowed to the foot of the Grampians, soon ebbed to the line between the Solway and the Tyne. Britain has no monuments of Roman power and civilization like those which have been left in Gaul and Spain, and of the British Christianity of the Roman period hardly a trace, monumental or historical, remains. By the Saxon conquest England was entirely severed for a time from the European system. The missionary of ecclesiastical Rome recovered what the legionary had lost. Of the main elements of English character political and general, five were brought together when Ethelbert and Augustine met on the coast of Kent. The king represented Teutonism; the missionary represented Judaism, Christianity, imperial and ecclesiastical Rome. We mention Judaism as a separate element, because, among other things, the image of the Hebrew monarchy has certainly entered largely into the political conceptions of Englishmen, perhaps at least as largely as the image of Imperial Rome. A sixth element, classical Republicanism, came in with the Reformation, while the political and social influence of science is only just beginning to be felt. Still, after the conversion of England by Augustine, the Church, which was the main organ of civilization, and almost identical with it in the early Middle Ages, remained national; and to make it thoroughly Roman and Papal, in other words to assimilate it completely to the Church of the Continent, was the object of Hildebrand in promoting the enterprise of William. Roman and Papal the English Church was made, yet not so thoroughly so as completely to destroy its insular and Teutonic character. The Archbishop of Canterbury was still _Papa alterius orbis_; and the struggle for national independence of the Papacy commenced in England long before the struggle for doctrinal reform. The Reformation broke up the confederated Christendom of the Middle Ages, and England was then thrown back into an isolation very marked, though tempered by her sympathy with the Protestant party on the Continent. In later times the growth of European interests, of commerce, of international law, of international intercourse, of the community of intellect and science, has been gradually building again, on a sounder foundation than that of the Latin