13:15Byd Natur: Naturalists' Brains TrustBBC Home Service Mon 2nd Nov 1964, 13:15 on BBC Home Service Welsh Source: Radio Times
20:00' Cysgod y Cryroan ': by Islwyn Ffowc ElIS-3BBC Home Service Mon 2nd Nov 1964, 20:00 on BBC Home Service Welsh Source: Radio Times