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Letter from Sam Howard about samples of cobalt which he has sent to the Society, also about copper
Letter from Sam Howard about samples of cobalt which he has sent to the Society, also about copper
Letter from Sam Howard about the cobalt from Derbyshire and one in Devonshire and lead and copper
Letter from Sam Howard about the cobalt from Derbyshire and one in Devonshire and lead and copper
Letter from Sam Howard about the cobalt which he has discovered on an estate in Derbyshire
Letter from Sam Howard about the cobalt which he has discovered on an estate in Derbyshire
Letter from Sam Howard about the ore in the mines and also about his cobalt discovery
Letter from Sam Howard about the ore in the mines and also about his cobalt discovery
Letter from Thomas Turner requesting the loan of a manuscript about cobalt, belonging to the Society
Letter from Thomas Turner requesting the loan of a manuscript about cobalt, belonging to the Society
Letter in French from Jean Gottlieb Lehmann, Berlin about a premium about cobalt
Letter in French from Jean Gottlieb Lehmann, Berlin about a premium about cobalt
Letter in French from Jean Gottlieb Lehmann, Berlin about cobalt
Letter in French from Jean Gottlieb Lehmann, Berlin about cobalt
Letter in French from M Hellot about cobalt
Letter in French from M Hellot about cobalt
Letter to Harry Hart from James Pennington about cobalt
Letter to Harry Hart from James Pennington about cobalt
Letter to Harry Hart from Thomas Maydew & Co about cobalt
Letter to Harry Hart from Thomas Maydew & Co about cobalt
Letter to Harry Hart from Thomas Teague about cobalt
Letter to Harry Hart from Thomas Teague about cobalt
Letters from J Sowell on Mr Hart's claim for the discovery of cobalt
Letters from J Sowell on Mr Hart's claim for the discovery of cobalt
Letters from John Heaver about his discovery of cobalt (certificate signed by Josiah Wedgwood, Etruria, 4/4/1817)
Letters from John Heaver about his discovery of cobalt (certificate signed by Josiah Wedgwood, Etruria, 4/4/1817)
Notes on cobalt, zaffre and smalt
Notes on cobalt, zaffre and smalt
Printed notice offering a gold medal 'To the author of the best essay on the natural history of cobalt'
Printed notice offering a gold medal 'To the author of the best essay on the natural history of cobalt'
Translation of a letter in French from Jean Gottlieb Lehmann, Berlin about cobalt
Translation of a letter in French from Jean Gottlieb Lehmann, Berlin about cobalt