4. THE MEDIAEVAL SCRIPTS.--A variety of national scripts arose in the establishment of the Teutonic kingdoms upon the ruins of the Roman Empire. But the most magnificent of all mediaeval scripts was the Irish, which exercised a profound influence on the later alphabets of Europe. From a combination of the Roman and Irish arose the Anglo-Saxon script, the precursor of that which was developed in the ninth century by Alcuin of York, the friend and preceptor of Charlemagne. This was the parent of the Roman alphabet, in which our books are now printed. Among other deteriorations, there crept in, in the fourteenth century, the Gothic or black letter character, and these barbarous forms are still essentially retained by the Teutonic nations though discarded by the English and Latin races; but from its superior excellences the Roman alphabet is constantly extending its range and bids fair to become the sole alphabet of the future. In all the lands that were settled and overrun by the Scandinavians, there are found multitudes of inscriptions in the ancient alphabet of the Norsemen, which is called the Runic. The latest modern researches seem to prove that this was derived from the Greek, and probably dates back as far as the sixth century B.C.The Goths were early in occupation of the regions south of the Baltic and east of the Vistula, and in direct commercial intercourse with the Greek traders, from whom they doubtless obtained a knowledge of the Greek alphabet, as the Greeks themselves had gained it from the Phoenicians. CLASSIFICATION OF LANGUAGES. Modern philologists have made different classifications of the various languages of the world, one of which divides them into three great classes: the Monosyllabic, the Agglutinated, and the Inflected. --The _first_, or Monosyllabic class, contains those languages which consist only of separate, unvaried monosyllables. The words have no organization that adapts them for mutual affiliation, and there is in them, accordingly, an utter absence of all scientific forms and principles of grammar. The Chinese and a few languages in its vicinity, doubtless originally identical with it, are all that belong to this class. The languages of the North American Indians, though differing in many respects, have the same general grade of character. The _second_ class consists of those languages which are formed by agglutination. The words combine only in a mechanical way; they have _no_ elective affinity, and exhibit toward each other none of the active or sensitive capabilities of living organisms. Prepositions are joined to substantives, and pronouns to verbs, but never so as to make a new form of the original word, as in the inflected languages, and words thus placed in juxtaposition retain their personal identity unimpaired.