Civil engineering: the Pont Cysylte aqueduct, the aqueduct at Pyrgos, the aqueduct at Roquefavour and the Colosseum at Rome. Engraving.

1 print : engraving ; image 20 x 13.5 cm

Amphitheatre, aqueduct. ; plate iv. Lettering within the print: Pont Cysylte aqueduct. conveying the Ellesmere canal across the river Dee and vale of Llangollen. length 1000 feet, height from the river to the waters of the canal 126 feet 8 inches. Aqueduct of Pyrgos. in the vicinity of Constantinople. length of branch shown above, 670 feet: height at deepest part, 106 feet. Aqueduct at Roquefavour. on the line of the Marseilles water works. extreme length 1311 feet, height at deepest part, 282 feet. The Coliseum at Rome longer diameter 6151/2 feet. Bears number top right : Plate IV.

Wellcome Collection 36757i