1. Duncum, Barbara M. 1994. The Development of Inhalation Anaesthesis. London: Royal Society of Medicine Press.
2. Ellis, Richard H. (ed.) 1994. The Case Books of Dr. John Snow. London: Wellcome Institute for the History of Medicine.
3. Pernick, Martin S. 1985. A Calculus of Suffering: Pain, Professionalism and Anaesthesia in Nineteenth Century America. Columbia University Press.
4. Snow, Stephanie J. 2006. Operations without Pain: The Practice and Science of Anaesthesia in Victorian Britain. Basingstoke: Palgrave Macmillan.
5. Snow, Stephanie J. 2008. Blessed Days of Anaesthesia: How Anaesthetics Changed the World. Oxford: Oxford University Press.