Letter from Gustavus Brander about cobalt

• RSA/PR/GE/110/1/1
• Item
• 29/3/1754

Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)

Letter from Francis Beauchamp about cobalt

• RSA/PR/GE/110/1/10
• Item
• 2/1/1755

Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)

Letter from Dr Linden about cobalt mines in parts of Wales

• RSA/PR/GE/110/1/12
• Item
• 10/1/1755

Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)

Letter from Rev M Wingate Pullen about cobalt

• RSA/PR/GE/110/1/13
• Item
• 1/2/1755

Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)

Letter from Dr Lewis about cobalt

• RSA/PR/GE/110/1/15
• Item
• 8/4/1755

Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)

Letter from Nicholas Crisp about cobalt

• RSA/PR/GE/110/1/20
• Item
• 14/5/1755

Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)

Letter from Michael Clarke about cobalt

• RSA/PR/GE/110/1/21
• Item
• 14/5/1755

Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)

Letter from Francis Beauchamp about cobalt

• RSA/PR/GE/110/1/26
• Item
• 16/6/1755

Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)

Letter from Francis Beauchamp about cobalt samples

• RSA/PR/GE/110/1/28
• Item
• 23/6/1755

Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)

Letter from Francis Beauchamp about specimens of cobalt, copper ores and mandicks

• RSA/PR/GE/110/1/39
• Item
• 31/12/1755

Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)

Letter from Francis Beauchamp about cobalt

• RSA/PR/GE/110/1/43
• Item
• 11/8/1755

Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)

Letter from Charles Powell about cobalt

• RSA/PR/GE/110/1/5
• Item
• 25/6/1754

Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)

Letter from John Mooring about cobalt

• RSA/PR/GE/110/1/6
• Item
• 15/9/1754

Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)

Letter from John Mooring about cobalt, specimen sent from Plymouth

• RSA/PR/GE/110/1/8
• Item
• 15/11/1754

Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)

Letter from J Peat about cobalt and zinc

• RSA/PR/GE/110/13/38
• Item
• 3/11/1762

Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)

Account of experiments on cobalt by Michael Morris

• RSA/PR/GE/110/15/28
• Item
• 16/2/1764

Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)

Letter from Dr Linden about cobalt

• RSA/PR/GE/110/2/107
• Item
• 25/2/1756

Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)

Letter from Charles Moreton, Nicholas Crisp and Frederick Brandenburgh about cobalt

• RSA/PR/GE/110/2/108
• Item
• 1756

Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)

Extract of letter from Peter Ornskold about cobalt and bismuth ore

• RSA/PR/GE/110/2/122
• Item
• 20/8/1755

Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)

Notes on cobalt, zaffre and smalt

• RSA/PR/GE/110/2/97
• Item
• 1756

Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)