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Letter from John Tulloch about his method of determining the longitude at sea
Letter from John Tulloch about his method of determining the longitude at sea
Letter from William Bigland about treatise on laws of mechanics
Letter from William Bigland about treatise on laws of mechanics
Letter from William Bigland about treatise on laws of mechanics
Letter from William Bigland about treatise on laws of mechanics
Letter from William Bridges about model for constructing an arch
Letter from William Bridges about model for constructing an arch
Letter from William Campbell Kitchingham about his scale for time
Letter from William Campbell Kitchingham about his scale for time
Letter from John Tulloch, petition, description and diagrams about his 'improvement in the method of discovering the longitude at sea' and 'Propositions for several mercurial and magnetic perpetual motions'
Letter from John Tulloch, petition, description and diagrams about his 'improvement in the method of discovering the longitude at sea' and 'Propositions for several mercurial and magnetic perpetual motions'
Letter from Henry Price about his naval pantometer
Letter from Henry Price about his naval pantometer
Letter from John Grant about Mr Geissler's astronomical clock
Letter from John Grant about Mr Geissler's astronomical clock
Letter from Johann Ludwig in German about his discovery of perpetual motion
Letter from Johann Ludwig in German about his discovery of perpetual motion
Letter from W Davison, unsigned, about his improvements in bridge building
Letter from W Davison, unsigned, about his improvements in bridge building
Letter from W Davison, about his improvements in bridge building
Letter from W Davison, about his improvements in bridge building
Letter from W Stone about ship's masts
Letter from W Stone about ship's masts
Letter from William Hookey about ships' masts
Letter from William Hookey about ships' masts
Letter from James Jeffery about a boot tree
Letter from James Jeffery about a boot tree
Letter from Rev H Harvey about his improved umbrella
Letter from Rev H Harvey about his improved umbrella
Letter from John Mitchell about fire escape
Letter from John Mitchell about fire escape
Letter from T Gent excusing himself from attending the meeting about his steam engine
Letter from T Gent excusing himself from attending the meeting about his steam engine
Letter from John B Madden about prevention of accidents
Letter from John B Madden about prevention of accidents
Letter from Thomas N Parker about the iron strap to be fixed on the side of the case containing his patterns for ironwork for gates
Letter from Thomas N Parker about the iron strap to be fixed on the side of the case containing his patterns for ironwork for gates
Letter from Thomas N Parker about patterns for the iron work of gates
Letter from Thomas N Parker about patterns for the iron work of gates