Fig. 2From: Indoor mould testing in a historic building: Blickling HallVarious means developed by National Trust to minimise odds for mould growth. Left: new timber insert at back of shelf with ventilation hole; middle: taffeta cover protecting text blocks from dust accumulation and resultant mould growth; right (© Andrew Bush/National Trust): cork spacer to support frames so that they are not flush with the wallBack to article page