Valturius, Robertus: Military author. Living at the end of the fifteenth century. His book ‘De Re Militari’ first printed at Verona, 1472.
Vegetius, Flavius Renatus: Roman military writer. Flourished in the time of the Emperor Valentinian II., 375–392. The best edition is that of Schwebel, 1767.
Viollet-le-Duc: French military historian. Published his ‘Dictionnaire raisonné de l’Architecture,’ 1861.
Vitruvius Pollio: Architect and military engineer and inspector of military engines under the Emperor Augustus. Born between B.C. 85 and 75. His tenth book treats of siege engines. Translated into French with commentary by Perrault, 1673. The most interesting editions of Vitruvius are those containing the commentary on siege engines by Philander. The best of these is dated 1649.
Fig. 21.—The Capture of a Fortress.
Criticism.—A fortification being entered by the besiegers, who have made a breach in the outside wall with a battering ram.
A catapult is in the left corner of the picture, and four men are taking a balista up the approach to the gateway.
From Polybius. Edition 1727.