Sphagnum latter being the slowly decaying matter underneath. Dried sphagnum moss is also used in northern Arctic regions as an insulating material. Anaerobic acidic sphagnum bogs have low rates of decay, and hence preserve plant fragments and pollen to allow reconstruction of past environments. They even preserve human bodies for millennia; examples of these preserved specimens are Tollund Man, Haraldskær Woman, Clonycavan Man and Lindow Man. Such bogs can also preserve human hair and clothing, one of the most noteworthy examples being Egtved Girl, Denmark. Because of the acidity of peat, however, bones are dissolved rather than preserved. These bogs have
Moss Jernverk Schweigaard wrote in 1840, "The mining industry has been a school for mechanical and technical knowledge and insight." Not much is left from Moss Jernverk: most of the buildings were demolished. Among what is preserved are the administration building (the convention building) and the workers' buildings along the street north of the administration building. The mill by the waterfalls has also been preserved. Moss Jernverk Moss Jernverk (Moss Ironworks) was an ironwork in Moss, Norway. Established in 1704, it was for many years the largest workplace in the city, and melted ore, chiefly from Arendalsfeltet (a geologic province in Norway).