Correspondence and papers re honours received by Blackett: 1961-1965 1. Foreign Honorary Membership, American Academy of Arts and Sciences. Correspondence with secretary. 1961 2. Hon. D. Sc. Manchester. Speech by the Public Orator. 1962 3. Hon. D. Sc. Durham. Speech by the Public Orator. 1962 4. Hon. D. Sc. Oxford. Letter from Registrar. 1962 5. Bimala Churn Law Gold Medal, Indian Association for the Cultivation of Science. Correspondence with Director. 1963 6. Foreign Membership, Accademia Nazionale dei Lincei, Rome. 1965 Correspondents include: K Bannerjee, Angelo Monteverdi, 1961-1965