Obituary notices: Frederick Augustus Abel, 1827–1902; Cornelis Adriaan Lobry de Bruyn, 1857–1904; Edward Frankland, 1825–1899; John Hall Gladstone, 1827–1902; Wladimir Wassiljewitsch Markownikoff, 1838–1904; Lyon Playfair, 1818–1898; Alexander William Williamson, 1824–1904
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