Diary
M.F. Perutz: Memories of J.D.Bernal, 6 July 2000
“... he would suddenly look at his watch, remember that he had something more important to do and rush off. His lectures were spontaneous, fluent, wide-ranging, inspiring for the cognoscenti but difficult for undergraduates. When one of them left his notebook behind, we found it empty, with the single heading: ‘Bernal’s Bloody Business’. Now, 28 years ... ”