Folders B.4.1-B.4.5: Lectures delivered at Dundee University, 1938-1944. Folder B.4.1: 'Theoretical calculations of molecular structure'. Ms. of a series of 6 lectures. Folder B.4.2: 'Hydrodynamics. Senior Honours'. MS. notes. Folder B.4.3: 'Dynamics' and 'Ramsay Dynamics'. Extensive MS. notes and drafts. Folder B.4.4: 'Interpolation. Numerical integration. Junior Honours'. 2 booklets of MS. notes and drafts,…