Lewis and Harris MacLeod, and those on Lewis being referred to as from the clan MacLeod of Lewis. Lewis is also the ancestral home of Clan Morrison. The Lewis chessmen is a famous collection of 12th-century chess pieces, carved from walrus ivory and mostly in the form of human figures, which were discovered in Uig in 1831. A major industry on the island is the production of Harris tweed fabric, which is handmade on the island; by law only fabric produced in the Outer Hebrides can be called Harris tweed. The Lewis Trilogy of novels ("The Blackhouse", "The Lewis Man" and "The Chessmen")
Marlan (fabric) According to the European Standard EN 373 or the new one EN ISO 9185 the fabric has the maximum value D3 for protection against aluminium splashes and E3 for iron splashes. The wool blend with a flame retardant fiber provides thermal insulation characteristics while avoiding the molten metal sticking to the fabric, which was the main problem of pure synthetic or natural fibers used in the past. Currently there are different types and developments of Marlan, developed according to specific risks in foundries: Marlan (fabric) Marlan is a registered trademark for inherent flame retardant fabric (UNE EN 11612) used in