HILL House, the Charles Rennie Mackintosh masterpiece in Helensburgh is, in the vivid words of Neil Oliver, president of the National Trust for Scotland, in danger of “dissolving like an aspirin in a glass of water”. . http://www.heraldscotland.com/news/16319597.the-45m-radical-solution-to-dampness-at-the-mackintosh-masterpiece-hill-house/