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 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 D W Linden about cobalt

• RSA/PR/GE/110/5/4
• Item
• 30/9/1754

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

Letter from D W Linden about cobalt

• RSA/PR/GE/110/5/5
• Item
• 22/10/1754

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 George Best about cobalt

• RSA/PR/GE/110/5/7
• Item
• 28/11/1754

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

Letter from George Best about cobalt

• RSA/PR/GE/110/5/6
• Item
• 28/11/1754

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

Letter from D W Linden about cobalt

• RSA/PR/GE/110/5/9
• Item
• 2/12/1754

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 Stephen Hales about cobalt

• RSA/PR/GE/110/5/13
• Item
• 18/3/1755

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 cobalt

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

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)