Swansong for ugly duckling

March 3, 2011

Rather than giving me the bird with mixed metaphors on cuckoos and swallows (Letters, 24 February), Douglas Kell, a research council chief executive officer, might reflect on why Ken Seddon, the UK's top chemist, could be correctly identified as a valuable swan when a predecessor could see only an ugly duckling.

Don Braben, Honorary professor, University College London

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