This is a very misleading post. St. Bernadette is known to have been found decayed. Her hands and face are pure wax. The picture you posted here of Saint Silvan is not of a corpse. It's of a sculpted effigy. That is fact. Yet, your article states that it is a preserved corpse. That's just not true. It's a sin not to ask questions given our God-created brains.
http://skeptoid.com/episodes/4126