[III_32] Plin. xviii. 10.
[III_33] Vid. Turneb. Salmas, et Perrault, section Vitruve.
[III_34] Goetzius, De Pistrinis Veterum.
[III_35] Strabo, Geograph.
[III_36] De Canone Frumentar, Urb. Rom. L. iv. Cassiodor. Variar. iii.
[III_37] 5th century.
[III_38] Decernimus de Aquæductu, L. x.
[III_39] Anno 536.
[III_40] Procop. De Bello Gothico. i. 15.
[III_41] Vitruv. x. 5; Schneider; Palladius, R. R. i. 42.