succession as cause and effect) were joint effects from a common cause, which cause was imperishable as death, or the ocean, and as deep as are the fountains of animal life. Could the ocean be altered by a sea fight? or the atmosphere be tainted for ever by an earthquake? As little could any single reign or its events affect the feud of the Moslem and the Christian; a feud which could not cease unless God could change, or unless man (becoming careless of spiritual things) should sink to the level of a brute. These are considerations of great importance in weighing the value of the Eastern Empire. If the cause and interest of Islamism, as against Christianity, were undying--then we may be assured that the Moorish infidels of Spain did not reiterate their trans-Pyrenean expeditions after one generation--simply because they _could_ not. But we know that on the south-eastern horn of Europe they _could_, upon the plain argument that for many centuries they _did_. Over and above this, we are of opinion that the Saracens were unequal to the sort of hardships bred by cold climates; and there lay another repulsion for Saracens from France, &c., and not merely the Carlovingian sword. We children of Christendom show our innate superiority to the children of the Orient upon this scale or tariff of acclimatizing powers. We travel as wheat travels through all reasonable ranges of temperature; they, like rice, can migrate only to warm latitudes. They cannot support our cold, but we _can_ support the countervailing hardships of their heat. This cause alone would have weatherbound the Mussulmans for ever within the Pyrenean cloisters. Mussulmans in cold latitudes look as blue and as absurd as sailors on horseback. Apart from which cause, we see that the fine old Visigothic races in Spain found them full employment up to the reign of Ferdinand and Isabella, which reign first created a kingdom of Spain; in that reign the whole fabric of their power thawed away, and was confounded with forgotten things. Columbus, according to a local tradition, was personally present at some of the latter campaigns in Grenada: he saw the last of them. So that the discovery of America may be used as a convertible date with that of extinction for the Saracen power in western Europe. True that the overthrow of Constantinople had forerun this event by nearly half a century. But then we insist upon the different proportions of the struggle. Whilst in Spain a province had fought against a province, all Asia militant had fought against the eastern Roman empire. Amongst the many races whom dimly we descry in those shadowy hosts, tilting for ages in the vast plains of Angora, are seen, latterly pressing on to the van, two mighty powers, the children of Persia and the Ottoman family of the Turks. Upon these nations, both now rapidly decaying, the faith of Mahomet has ever leaned as upon her eldest sons; and these powers the Byzantine Caesars had to face in every