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4. British Newspaper Archive. Sheffield Evening Telegraph. 18 March 1899. Available at https://www.britishnewspaperarchive.co.uk/viewer/bl/0000276/18990318/004/0003 (accessed October 2022).
5. British Newspaper Archive. Poisonous phosphorous, a deputation to the Home Secretary. Morning Post. 22 July 1898. Available at https://www.britishnewspaperarchive.co.uk/viewer/bl/0000174/18980722/008/0002 (accessed September 2022).