Zionist Politics in Wartime Washington: A Fragment of Personal Reminiscence, Yaacov Herzog Memorial Lecture (Jerusalem, 1972: Hebrew University of Jerusalem), 61 pp.

• excerpted in Barnet Litvinoff (ed.), The Essential Chaim Weizmann: The Man, the Statesman, the Scientist (London, 1982: Wei Nicolson)
• originally to have been reprinted in Personal Impressions, but IB changed his mind: later repr. in Flourishing
• trans. Hebrew