Chap. IV.
OF ANCIENT BUILDINGS.
205
fires, separated by an interval of time, during which the 6 inches of "mortar and concrete
Mould, 16 inches thick.
Charred wood, 10 inches thick.
Mortar with broken tiles, 6 inches thick.
Charred wood, 2 inches thick.
Undisturbed gravel.
Fig. 10.
Section within a hall in the Basilica at Silchester. Scale 132.
