London : Longman, Rees, Orme, Brown, Green, and Longman · leaf 307
t. 2 in. tiiere are 194-in.; which, divided by 6, gives32^^ in., or 2 ft. 8 in., for the true diameter: but the depth, ordiameter, of the pier e is 5 ft. 9 in.; it is therefore twice the truediameter, and 5 in. over. The height of the pier e is 11 ft. 2 in.;therefore shorter than the span by 5 ft.… … Under the test of experiment, tlie arcli composed of voussoirsonly, and the pier e, made, for the sake of convenience, 6 in. or6 ft. through, instead of 5 ft. 9 in., carried on the crown 14lb.Now, the pier employed weighed 4 lb.; therefore the arch ba-lanced with three and a half times the weight…
Architecture
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
![An illustration from The stones of Venice : [With appendices, additional notes, and "Venetian index."] (1894)](https://img.insideoutlibrary.com/img/200/ia-stonesofvenicewi02rusk-296-76.webp)
