Molecule of the Month: The poison prescribed by Agatha Christie: Correction
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Your support makes all the difference.In 'The poison prescribed by Agatha Christie' (Molecule of the Month, 20 July), Dr John Emsley described how, in 1971, Graham Young used thallium sulphate to poison workmates at a Hertfordshire photographic equipment factory. The article erroneously stated that the photographic company used thallium to make lenses. This is not the case: the company does not and has never used thallium in any form. The thallium that Graham Young used was purchased from a chemist's in London.
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