Transactions of the Institute of British Architects of London (1835)
Royal Institute of British Architects · London · leaf 25
diagonal arches. Upon these the vaults rest. This is a very curious specimen, for every pair of these arches has a different span : that of the two transverse arches upon the long diameter of the room being twelve feet three inches each ; of the two shorter transverse arches, nine feet ; and of the… … arches, yet these are backed up by a rude wall of rubble work, as at m, n and p, upon which the rough vaults are supported, and this is necessary to get lid of the difficulty of resting a vaulting surface upon arches whose curvature and level at the springing are so different. Fig. 2 is another…
Architecture
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