The bottle containing the bones first surfaced at a pharmacy in 1867. Its label read: "Remains found under the pyre of Joan of Arc, maiden of Orleans." Different techniques, including DNA analysis, several forms of microscopy, chemical analysis and carbon dating, were used to examine the bottle's contents. A few years ago, Philippe Charlier, a forensic scientist at Raymond Poincare Hospital in Garches, France, and his team first determined that the bottle contained an approximately 4-inch-long human rib covered with a black coating. It also housed part of a cat femur covered with the same coating, three fragments of "charcoal"...