Letter from [William Maddock] Bayliss, Institute of Physiology, University College, Gower Street, London, to William Bate Hardy, Secretary of the Royal Society Regarding their brief conversation with Professor [Ivan] Pavlov, proposes that Pavlov should deliver a lecture before the Society on the organisation of research in conditioned reflexes. Suggests conveying this to Pavlov through the Board of Education in Petrograd or the Imperial Russian Academy of Science ('or whatever its name is now!'). 17 May 1920