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Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)
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cobalt
Letter from George Best about cobalt
Letter from George Best about cobalt
Letter from George Best about cobalt
Letter from George Best about cobalt
Letter from Gustavus Brander about cobalt
Letter from Gustavus Brander about cobalt
Letter from Harry Hart about cobalt
Letter from Harry Hart about cobalt
Letter from Harry Hart about cobalt
Letter from Harry Hart about cobalt
Letter from J Holdship about cobalt and finding a substitute for white lead
Letter from J Holdship about cobalt and finding a substitute for white lead
Letter from J Peat about cobalt
Letter from J Peat about cobalt
Letter from J Peat about cobalt
Letter from J Peat about cobalt
Letter from J Peat about cobalt and zinc
Letter from J Peat about cobalt and zinc
Letter from James Dean about Mr Hart's claim for the discovery of cobalt
Letter from James Dean about Mr Hart's claim for the discovery of cobalt
Letter from John Heaver about his claim to have discovered cobalt, also about Mr Hart, with certificates and envelope
Letter from John Heaver about his claim to have discovered cobalt, also about Mr Hart, with certificates and envelope
Letter from John Heaver about his discovery of cobalt
Letter from John Heaver about his discovery of cobalt
Letter from John Jacks about premiums for English cobalt
Letter from John Jacks about premiums for English cobalt
Letter from John Mooring about cobalt
Letter from John Mooring about cobalt
Letter from John Mooring about cobalt, specimen sent from Plymouth
Letter from John Mooring about cobalt, specimen sent from Plymouth
Letter from Joseph Lowell about cobalt, with certificates
Letter from Joseph Lowell about cobalt, with certificates
Letter from Michael Clarke about cobalt
Letter from Michael Clarke about cobalt
Letter from Nicholas Crisp about cobalt
Letter from Nicholas Crisp about cobalt
Letter from Rev M Wingate Pullen about cobalt
Letter from Rev M Wingate Pullen about cobalt
Letter from Sam Howard about his discovery of cobalt and also about the sample he has sent to the Society of Carmine
Letter from Sam Howard about his discovery of cobalt and also about the sample he has sent to the Society of Carmine