Working backwards from the header in the linked PDF, I found “University studies, Cambridge, 1933”: https://www.worldcat.org/title/1197571

(Contents: Introduction, by Harold Wright; Philosophy, by R.B. Braithwaite; Mathematics, by M.H.A. Newman; The craft of experimental physics, by P.M.S. Blackett; Chemistry, by C.P. Snow; Physiological research, by R.K. Matthews; Biology, by C.H. Waddington; History, by R.E. Balfour; The study of the classics at Cambridge, by B.L. Hallward; English literature, by F.L. Lucas)

From the second sentence of the article, The Craft of Experimental Physics, by P.M.S. Blackett.