One box of correspondence and papers relative to the planning, building and equipping of the new Mathematical Institute. Coulson's scrupulous attention to the myriad details of the project, from the first meetings to discuss tentative requirements for the new building to his weekly notes regarding minor items which were faulty or lacking after the building was completed and occupied, is much in evidence. Item H.2.1: Coulson's notes, drafts, and memoranda with floor…