XXXIX

Of Machines of Draught. Chap. II.

Of Another Sort of Machine of Draught. Chap. III.

Of a Similar Machine, of Greater Power. Chap IV.

Of Another Machine of Draught. Chap. V.

Of Ctesiphon’s Contrivance for Removing Great Weights. Chap.

VI.

Of the Discovery of the Quarry whence Stone was procured for theTemple of Diana at Ephesus. Chap. VII.

Of the Principles of Mechanics. Chap. VIII.

Of Engines for raising Water; and first of the Tympanum. Chap.IX.

Of Another Sort of Tympanum, and of Water Mills. Chap X.Of the Water Screw. Chap. XI.

Of the Machine of Ctesibius for Raising Water to a ConsiderableHeight. Chap. XII.

Of Water Engines. Chap. XIII.

Of Measuring a Journey. Chap. XIV.

Of Catapultae and Scorpions. Chap. XV.

Of the Construction of the Balista. Chap. XVI.

Of the Proportions of the Balista. Chap. XVII.

Of the Preparation of the Balistse and Catapultae. Chap. XVIII.Of Machines for Attack- Chap. XIX.

Of the Tortoise for Filling Ditches. Chap. XX.

Of Other Sorts of Tortoises. Chap. XXI.

Of Machines for Defence. Chap. XXII.