Signed photograph of Frederick G Donnan (1870-1956). Donnan was a profesor of chemistry at Liverpool University, and later at University College London as profesor of inorganic and physical chemistry, becoming head of department there. Before WWII Donnan helped Jewish scholars emigrate from Germany and Austria, amongst whom were Jahn and Teller who produced their 'Jahn and Teller' effect while working in London. During the war he was involved in the industrial production of 'synthetic' ammonia and nitric acid. Donnan's principal achievement was the theory of membrane equilibrium which contributed to the understanding of the living cell. He was blind in one eye. Dimensions: 330mm x 290mm.
© Science Museum / Science & Society Picture Library