No. 4. Cross Section

AFlying buttressesA thrust support, or prop, extending from the main fabric to an outer pier
BTimber roofThe timber or scantling above the nave, which supports the outer tiled or leaden roofing
CNaveThe main body of a church
DAisleThe passage which flanks the nave
EOuter aisleA second or outer passage flanking the nave
FStairway to roof of aisleStairways from the interior pavement, leading to triforium, belfry, or roof
GCryptIn reality a lower or subterranean church or chapel; from crypta, to hide
HButtress pierThe outer support of a flying buttress, or one lying directly against the wall which it strengthens

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