Faddan More Psalter used as a liner to stiffen the cover somewhat. Low oxygen levels in the bog provide unusual preservation conditions, and bogs were often used by Irish monks as hiding places for valuables in the face of Viking raids. In addition to low oxygen levels, sphagnum moss, of which the peat bog is composed, produces an antibiotic substance called sphagnan that binds with proteins on the surface of microorganisms, immobilising them. Its highly reactive carbonyl groups can alter chemicals and nutrients that would otherwise decompose organic matter. And above all the sphagnum moss causes organic material to undergo chemical changes itself
Blawhorn Moss National Nature Reserve area by the International Union for Conservation of Nature, and is also designated as both a Special Area of Conservation and a Site of Special Scientific Interest. The reserve is owned and managed by Scottish Natural Heritage (SNH). Blawhorn Moss provides an important habitat for wildlife and supports many of the plant species representative of bog habitat. A number of sphagnum mosses grow here, as well as heather, crowberry, hare’s-tail cotton grass and common cotton grass. A variety of bird species breed on the moss, including red grouse, snipe, curlew and redshank. Stonechat, skylark and meadow pipit are also regularly