This image of bloody diarrhea is from a book by John Arderne written in 1370. The National Library in Stockholm houses the five meter long parchment script. Arderne is most famous for describing how to operate on anal fistulas.
This image of bloody diarrhea is from a book by John Arderne written in 1370. The National Library in Stockholm houses the five meter long parchment script. Arderne is most famous for describing how to operate on anal fistulas.