This, however, does not prove deliberate poisoning by Napoleon's enemies: copper arsenite has been used as a pigment in some wallpapers, and microbiological liberation of the arsenic into the immediate environment would be possible.
This does not prove deliberate poisoning by Napoleon's enemies. This is however. Copper arsenite has been used as a pigment in some wallpapers. Microbiological liberation of the arsenic into the immediate environment would be possible.