Two letters from World Scientific Publishing about tracking down a missing article entitled 'Proton Nuclear Magnetic resonance Imaging - the new form of diagnostic imaging'. Two letters from World Scientific Publishing about tracking down a missing article entitled 'Proton Nuclear Magnetic resonance Imaging - the new form of diagnostic imaging'. The first letter dated 19 January 1983 from Ms Liu to Professor Mallard informs him that his manuscript from the Trieste meeting has gone missing and asking if it would be possible for him to forward another original copy to them as quickly as possible. The second letter from Ms Liu to Professor Mallard dated 27 January 1983 informs him that the missing copy has been found and apologising for any inconvenience. Q1-490 These copies are original letters. January 1983