Jackson, Thomas Graham, Sir, 1835-1924 · Cambridge : University Press · leaf 63
^^i V/ Fig. 8. and so by being keyed became secure. It is in this waythat the granaries of Rameses II at Thebes are con-structed, and also the galleries at Khorsabad. The samemethod is adopted in the Palace of Ctesiphon, built byChosroes II about a.d. 550, where the enormous barrelvault of the…