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Letter from Benjamin Probert about his dipping needle to find out longitude
Letter from Benjamin Probert about his dipping needle to find out longitude
Letter from O Essex about his improved compass
Letter from O Essex about his improved compass
Letter from Colin MacKenzie about hanging large bells
Letter from Colin MacKenzie about hanging large bells
Letter from Caleb Pitt about his clock
Letter from Caleb Pitt about his clock
Letter from Robert Smith about his hair pump
Letter from Robert Smith about his hair pump
Letter from William Cato about his machine for the preservation of life, packets of letters or any other valuables in case of shipwreck
Letter from William Cato about his machine for the preservation of life, packets of letters or any other valuables in case of shipwreck
Letter from Daniel Pring about his machine for cleaning wheat
Letter from Daniel Pring about his machine for cleaning wheat
Letter from William Hutchings about his roller
Letter from William Hutchings about his roller
Letter to Mr Thompson enclosing letters addressed to Henry Allison, Michael Matthews, Benjamin Brown, Thomas Linton, James Brown, James Hagan, George Leslie asking them to attend at the Society's House on 26/5/1789 to receive the rewards voted to them for killing whales with the gun harpoon
Letter to Mr Thompson enclosing letters addressed to Henry Allison, Michael Matthews, Benjamin Brown, Thomas Linton, James Brown, James Hagan, George Leslie asking them to attend at the Society's House on 26/5/1789 to receive the rewards voted to them for killing whales with the gun harpoon
Letter from William Hoddy about his fire escape
Letter from William Hoddy about his fire escape
Letter from J L Yaros about his square borer
Letter from J L Yaros about his square borer
Letter from Thomas Barry about surveying
Letter from Thomas Barry about surveying
Letter from Richard Simpson about his 'waggoner cart to go that is easy and safe a draft with 4 (or even 3) horses instead of 6'
Letter from Richard Simpson about his 'waggoner cart to go that is easy and safe a draft with 4 (or even 3) horses instead of 6'
Letter from Thomas Paine addressed to Sir George Staunton about his experiment in constructing bridges with a single arch
Letter from Thomas Paine addressed to Sir George Staunton about his experiment in constructing bridges with a single arch
Letter from Jeremiah Stevens about his improved sun dial
Letter from Jeremiah Stevens about his improved sun dial
Letter from Bernard Hughes on his instruments for solving questions in trigonometry
Letter from Bernard Hughes on his instruments for solving questions in trigonometry
Letter from John McDonald about fire extinguisher
Letter from John McDonald about fire extinguisher
Letter from J N Morgan about perpetual motion machine
Letter from J N Morgan about perpetual motion machine
Letter from William Foulds about his method of preventing cisterns from overflowing
Letter from William Foulds about his method of preventing cisterns from overflowing
Letter from Simon Preau about his artificial nose, with a note of the Society's decision
Letter from Simon Preau about his artificial nose, with a note of the Society's decision