It was fascinating to see the article “Is ‘teaching intensity’ a good measure of student learning?” (News, 3 August) illustrated with a rare photograph of V. I. Lenin, cheroot in hand, pointing out to a fellow smoker and head of the Soviet secret police, F. E. Dzerzhinsky, the merits of an apparently nude painting. Are there more such gems in your archive for display as we approach the centenary of the October Revolution?
R. E. Rawles
Honorary research fellow in psychology
University College London