Letter from D M [David Christie Martin], Assistant Secretary of the Royal Society, to M R [Muhammad Raziuddin] Siddiqui, Director of the Research Institute, Osmania University, Hyderabad-Deccan, India Informing Siddiqui that Sir Alfred Egerton has had to undergo a further operation in hospital as a result of his accident in Switzerland earlier that year, but that Martin will pass on Siddiqui's letter to him as soon as possible. 12 November 1947