The German and Keltic races, thus distinguished in the days of Cæsar, are equally distinct to-day. Catholicism, the religion of a priesthood, a ritual, and authority, prevails among the Kelts; Protestantism among the Germans. Ireland, being mainly Keltic, is Catholic, though a part of a Protestant nation. France, being mainly Keltic, is also Catholic, in spite of all its illumination, its science, and its knowledge of "intellectual laws." But as France contains a large infusion of German (Frankish) blood, it is the most Protestant of Catholic nations; while Scotland, containing the largest infusion of Keltic blood, is the most priest-ridden of Protestant nations. This last fact, which Mr. Buckle asserts, and spends half a volume in trying to account for, is explained at once by ethnology. Wherever the Germans go to-day, they remain the same people they were in the days of Tacitus; they carry the same blue eyes and light hair, the same love of freedom and hatred of slavery, the same tendencies to individualism in thought and life, the same tendency to superstitious belief in supernatural events, even when without belief in any religion or church; and even the same love for beer, and "lac concretum," now called "schmeercase" in our Western settlements. The Kelt, also, everywhere continues the same. He loves equality more than freedom. He is a democrat, but not an abolitionist. Very social, clannish, with more wit than logic, very sensitive to praise, brave, but not determined, needing a leader, he carries the spirit of the Catholic Church into Protestantism, and the spirit of despotism into free institutions. And that physical, no less than mental qualities, continue under all climates and institutions is illustrated by the blue eyes and light hair which the traveller meets among the Genoese and Florentines, reminding him of their Lombard ancestors; while their superior tendencies to freedom in church and state suggest the same origin. Nineteen hundred years have passed since Julius Cæsar pointed out these diversities of character then existing between the Germans and Kelts. Since then they have passed from barbarism to civilization. Instead of living in forests, as hunters and herdsmen, they have built cities, engaged in commerce, manufactures, and agriculture. They have been converted to Christianity, have conquered the Roman empire, engaged in crusades, fought in a hundred different wars, developed literatures, arts, and sciences, changed and changed again their forms of government, have been organized by Feudalism, by Despotism, by Democracy, have gone through the Protestant reformation, have emigrated to all countries and climates; and yet, at the end of this long period, the German everywhere remains a German, and the Kelt a Kelt. The descriptions of Tacitus and Cæsar still describe them accurately. And yet Mr. Buckle undertakes to write a history of civilization without taking the element of race into account.