Written in 1903, just sixty years after the word ‘hypnotism’ was coined, this book explores the contemporary understanding of the nature, uses and dangers of the technique. Hypnotism has been practiced for many centuries, but it was in the mid-to-late nineteenth century that it became a particularly fashionable way to explore the human mind. Although understanding of the subject has evolved considerably over subsequent years, this book remains a fascinating insight into a technique once thought to be at the forefront of medical science.