Nec tamen haec sola ratio Ctesibii fertur exquisita, sed etiam plures et variis generibus ab eo liquore pressionibus coactae spiritus efferre ab natura mutuatos effectus ostendentur, uti merularum aquae motu voces atque angubatae, bibentiaque et eadem moventia sigilla ceteraque, quae delectationibus oculorum et aurium usu sensus eblandiantur.
Nor is this the only remarkable device of Ctesibius which is current. There are many others of various kinds which are driven by the pressure of water. The pneumatic pressure will be shown to produce effects borrowed from nature, both notes of blackbirds by the motion of water, and walking automata; little figures which drink and move; and other things which flatter the pleasure of the eyes and the use of the ears.
final_alignments\Vitruvius_Architecture_Book_10.json