XII. De animalibus.
XIII. De mundo et partibus. (The universe and its parts—atoms, elements, sky, thunder, winds, waters, etc.)
XIV. De terra et partibus. (Geographical.)
XV. De aedificiis et agris. (Cities, their public constructions, houses, temples, and the fields.)
XVI. De lapidibus et metallis. (Stones, metals, and their qualities curious and otherwise.)
XVII. De rebus rusticis. (Trees, herbs, etc.)
XVIII. De bello et ludis. (On war, weapons, armour; on public games and the theatre.)
XIX. De navibus, aedificiis et vestibus. (Ships, their parts and equipment, buildings and their decoration; garments and their ornament.)
XX. De penu et instrumentis domesticis et rusticis. (On wines and provisions, and their stores and receptacles.)
[132] The exaggerated growth of grammatical and rhetorical studies is curiously shown by the mass of words invented to indicate the various kinds of tropes and figures. See the list in Bede, De schematis (Migne 90, col. 175 sqq.).