1. Greek Medicine: Being Extracts Illustrative of Medical Writers from Hippocrates to Galen. London, J. M. Dent & Sons, 1929. pp. 213–214.
2. History of Medicine, 2 Vols. Trans. London, Oxford University Press, 1910–1925. Vol. 1, pp. 240–273.
3. (ed.) Brett's History of Psychology. London, George Allen & Unwin, 1962. pp. 197–204.
4. and A Short History of Medicine, 2nd edition. Oxford, Clarendon Press, 1962. pp. 62–65.
5. On Galen's Pneumatology