Peter, >I have just come across a reference to a child "much afflicted with St Anthony's fire" in 1839. Anyone know what the modern terminology would be. < Further Googling reveals: "On 15 August 1151 one in twenty of the 4000 inhabitants of another village in France called Pont Saint Esprit (Bridge of the Holy Spirit) went mad. They had hallucinations, writhed in agony in their beds, vomited, ran crazily in the streets and suffered terrible burning sensations in their limbs. The madness was quickly diagnosed. They were suffering from St Anthony's Fire, a dreaded illness that was common in the Middle Ages. The cause was poisoning from a fungus (ergot) that grows on rye grass. The fungus contaminated the rye flour used in making bread. Ergot contains a chemical that makes the sufferers go berserk and causes gangrene of the hands and feet due to constriction of blood supply to the extremities. If it is not treated (and this was not possible in the Middle Ages), victims had the sensation of being burned at the stake, before their fingers, toes, hands and feet dropped off. Jeanne Bunting