Joseph Ennemoser (1787-1854) was born in Tyrol and, after fighting in the Tyrolean rebellion and the Napoleonic wars, qualified as a physician in Berlin. He later became professor at the recently founded University of Bonn, and eventually opened a successful medical practice in Munich. Ennemoser was a leading figure in the then highly fashionable field of 'animal magnetism' (popularised by Mesmer in the later eighteenth century) and hypnosis, and...