Daniel Hack Tuke first used the word 'psychotherapeutics' in 1872 (Ellenberger, 1970, p. 765). He defined the term psychotherapy in his dictionary (Tuke, 1892), published twenty years later, as 'treatment of disease by the influence of the mind on the body'. Advances in the field of the behavioural sciences and other events in the twentieth century have led to changes in the meanings of psychot...