Letter from Arthur James Balfour, Admiralty, Whitehall, to [Joseph] Larmor He dictated his letter very hastily last night and therefore he adds a postscript. He did not want to suggest that Cambridge men of science should take up the problem in preference to others. Zeppelin inflammability was a matter of practical interest and the faulre of the attack was an unexplained disappointment. Headed: 'Private'. 29 May 1915