LONDON (REUTERS).- “Visitors may find some images in this exhibition disturbing,” reads a sign at the entrance to the Wellcome Collection‘s latest exhibition: “Skin.” “Skin” tracks attitudes toward the human body’s largest organ since the 15th century from scientific, artistic and historical perspectives. The exhibition is divided into four parts: objects, marks, impressions, and after-life. There is also a Skin Lab, which looks at recent developments in skin science. A black and white photograph of a patient in a Parisian hospital is the first piece in the exhibition. Running the length of the patient’s back is a giant scar. “This photograph sums up a lot of the underlying themes in the exhibition, first and foremost the exploration of skin as a physical and metaphorical frontier between the inside and outside of the body,” co-curator of the exhibition Lucy Shanahan told Reuters. “Another thing that recurs throughou