Copy of a letter from Jacob W Gruber, Temple University to K C D Vernon, Librarian, Royal Institution, Albemarle Street, London Refers to his work on the Tyndall and Owen collections - comments on lack of availability of manuscript materials on the history of science - is planning to set up repository for microfilms of unpublished materials on history of science - discusses this - asks if Vernon thinks institutions would permit collections to be copied - asks whether Royal Institution would allow microfilming of Tyndall Collection - has written to Mr LeFanu of the Royal College of Surgeons about his plan. 31 January 1962