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GIRNIGOE CASTLE 311 FOURTH PERIOD broken joists of which are still in situ. At the level of the floor above seen the corresponding notched corbels for supporting the wall-plate of are its roof, and the water-table to cover it in. This provision for defence would only be necessary in very calm weather, as generally the sea and the rocks would form a sure protection. A similar defensive arrange- ment exists on the opposite or south front, where the bretesche was
