He was elected a Fellow of the Royal Society in 1935 .
Sir Bernard Augustus Keen FRS ( 5 September 1890 -- 5 August 1981 ) was a British soil scientist and Fellow of University College London .
Bernard Augustus Keen FRS was elected a Fellow of the Royal Society in 1935 .
Sir Bernard Augustus Keen FRS ( 5 September 1890 -- 5 August 1981 ) was a British soil scientist and Fellow of University College London .