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Published online by Cambridge University Press: 24 August 2009
* Following the Author's ‘DuPont Position Statement on the Chlorofluorocarbon-Ozone-Greenhouse Issues’ (published on pp. 363–4 of our last issue), which we welcomed as broad-minded and fair (coming as it did from the largest manufacturer of the substances concerned) and so were glad to hear further about from him when sitting together as observers at the opening of the event here described.–Ed.