According to Richard Joyner in his appreciative review of Krishna Dronamraju’s biography of J. B. S. Haldane, Popularizing Science (Books, 23 February), J. B. S. “became a Marxist and then an apostate”. I think this should read “became a Stalinist and then an apostate”. In a letter to me in 1959, J. B. S. emphasised that although he had changed his opinions on many points of detail and emphasis as to science and Marxism, a study of India supported Marx’s views on the economic causation of ideologies in a most striking manner.
R. E. Rawles
Honorary research fellow in psychology
University College London