[18] Præfat. in iv. Sæcul. 184. In the time of Charlemagne those most in repute were Tours, St. Gall, Fulda, Reims, and Hirsfeld. We have given the names of Alcuin and Paul Warnefrid as the chief promoters of the Carolingian Revival, but we should not omit that of Theodulf, of Orleans, the indefatigable school inspector of the time. He it was who assisted the artistic side of the movement by his ingenious contrivances as a writer and illustrator of school books. Undoubtedly it was from his suggestions that we so often find in mediæval scientific treatises of the driest kind those graphic and wonderful tabulations and edifices, labelled and turreted, which make Aristotle, Priscian, and Marcianus Capella, not only comprehensible, but attractive. Theodulf composed in simple and easy Latin verse--somewhat after the style of the _Propria quæ maribus_ our own childhood--the description of a supposed tree of science, which he had drawn and painted, on the trunk and branches of which were the figures and names of the seven liberal arts. At the foot sat Grammar--the basis of all learning--holding on her hand a lengthy rod (ominous for the tender student). On the right Rhetoric stretched forth her hand. On the left was Dialectic. Philosophy sat on the summit; the rest being disposed according to their relative importance. The whole was explained in the _Carmina de septem artibus_, in which the bishop, who was one of the famous poets of the age, strove in flowery language to render these dry-as-dust studies acceptable to the youthful understanding. Theodulf was a great scholar, and assisted Alcuin in the revision of the Bible, one copy of which he himself had written whilst still Abbat of Fleury, about 790. At the beginning of this Bible is a poem in golden letters on purple, and a preface in prose, also in golden letters, giving a synopsis of the several books. The text differs somewhat from the Alcuin Bible, as it is that of Jerome before Alcuin's revision. This MS. is now at Paris. Another Bible executed to the order of Theodulf is now in the Town Library at Puy.