Jackson, Thomas Graham, Sir, 1835-1924 · Cambridge [Eng.] University press · leaf 144
4 I I ^ ^^ Fig. 24. flying buttresses; and their strength depends on theirabutment, which is the stair turret and the short respondwalls of the gallery arches. Strange to say removal ofplaster for the purpose of examination has revealed the … cH.vi] S. SOPHIA, CONSTANTINOPLE 93 fact that in one case at all events the stair turret was not Thebonded to the rest, but was separated by a clear joint\Should this be the case throughout it constitutes astructural defect. The aisles and galleries are both vaulted, the middle The vaultsbays with…
![An illustration from XIXe [i.e. Dix-neuvième] siècle (en France); classes - moeurs - usages - costumes - inventions. Ouvrage illustré d'un front. chromotypographique, de 16 planches coloriées aux patrons, de 36 entetes et lettres ornées et de 487 gravures (dont 24 tirées hors texte) d'après les principaux artistes du siècle (1893)](https://img.insideoutlibrary.com/img/200/ia-xixeiedixneuvi00granuoft-752-564.webp)
