A.S. DRIVER, address: 53 Warwick Rd., Pietermaritzburg 3201, Natal, South Africa, phone 0331-472565. Education: M.Sc (Physics) Rhodes University, Grahamstown Cape 1960. Interest in Popper's philosophy: to develop its potential as one of the greatest positive influences in human affairs that there has ever been. Publications: Minor articles relating to Popper's philosophy, and many letters to the press about the growth of reason in educational, social, theological and political theory. Queries to readers: I would be delighted by any kind of interaction and criticism from anyone 'on my wavelength' anywhere, since I get almost no interaction whatever is South Africa. I would be glad to know about the co-ordination of 'mind skills' and their development for use in conventional education.