The scope of the arts was wider than their names would suggest in modern times. Under grammar was included the study of the content and form of literature; and in practice the teaching varied from a liberal literary culture to a dry and perfunctory study of just enough grammar to give some facility in the use of Latin. Dialectic was mainly formal logic. Rhetoric covered the study of law, as well as composition in prose and verse. Geometry was rather what is now understood by geography and natural history, together with the medicinal properties of plants. Arithmetic, with the cumbrous Roman notation, included little more than the simplest practical calculations required in ordinary life and the computation of the calendar. Music embraced the rules of the plain-song of the Church, some theory of sound, and the connexion of harmony and numbers. Astronomy dealt with the courses of the heavenly bodies, and was seldom kept free from astrology. In philosophy the current text-books were the _De consolatione philosophiae_ of Boethius (470-524), an eclectic summary of pagan ethics from the standpoint of the Christian view of life, and the same writer's adapted translations of the _Categories_ and _De interpretatione_ of Aristotle and of Porphyry's _Introduction to the Categories_. It is evident that though such a scheme of studies might in practice, during ages of intellectual stagnation and general ignorance, be arid in the extreme, it was capable in time of revival of giving scope to the widest extension of culture. It was, indeed, at once comprehensive and unified in conception, and well adapted to educate for the perfectly definite and clear view of life which the Church set before men. The scholastic revival.