'The Size and Shape of Molecules': the Fisher Baker Lectures, Cornell University, New York, February-April 1959. Coulson spent a sabbatical term at Cornell in 1959. The following folders contain MS. drafts for his lectures, duplicated notes and material for the students; some folders include related offprints. Folder B.9.1: Programme of the course, notes for Lecture I - 'Introduction'. Folder B.9.2: 'Charge distribution in H2 - the only…