Letter from G.E Mainwaring, London Library, St James's Square, London, S.W, to Robert Harrison, Royal Society Informs he is researching the life of Sir Henry Mainwaring and has come across references in the "Classified Papers" of the Royal Society. Wishes to know whether the title of the papers and whether they are printed or in manuscript form, so he can confirm if they are duplicates of items he has already seen. 14 March 1916