Masonry bridges viaducts and aqueducts Machine generated contents note: Testing times for arches B. Harvey The Roman bridge builder: some aspects of his work N.A.F Smith The Pont du Gard and the aqueduct of Nimes N.A.F. Smith Vitruvius and the elevated aqueducts F.D. Prager Resistance to technological innovation: the history of the pile driver through the 18th century M.N. Boyer Rebuilding the bridge at Albi 1408 1410 M.N. Boyer Le Pont du Rialto: un chantier public a Venise a la fin du XVIe siecle D. Calabi and P. Morachiello The Pul i Khwaju in Isfahan: a combination of bridge dam and water art H. Luschey Berwick on Tweed Bridge J. Summerson Hollow spandrels in arch bridges: a historical study E.C. Ruddock Pont y ty pridd: a critical examination of its history E.I. Williams William Edwardss bridge at Pontypridd E.C. Ruddock The foundations of Hexham Bridge E.C. Ruddock Pulteney Bridge Jean Manco Two masonry bridges. II. Telfords bridge at Over J. Heyman and B.D. Threlfall Arch bridges J.B.B. Owen Valley crossings on the Old Croton Aqueduct L.D. Lankton The Canton Viaduct E.D. Galvin The fall of Barentin Viaduct 10 January 1846 D. Brooke The safety of masonry arches J. Heyman