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Summary The use of a currently invisible form of walling is suggested by the Neolithic structures at Claish, Balbridie and Balfarg. It is possible that this was turf. Historical, as well as archaeological, evidence is examined to clarify structural patterns associated with such material and its perceived advantages over wood. Its ready availability through the practice of shifting agriculture is postulated.
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Roy Loveday (2006) studied this question.
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