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Letter from Edward Preston about his perfect craniometer and his new invented [lathe] for turning, cutting and dividing cog wheels on a small scale for clocks and other small purposes
Letter from Edward Preston about his perfect craniometer and his new invented [lathe] for turning, cutting and dividing cog wheels on a small scale for clocks and other small purposes
Letter from R Francis about his dial plates
Letter from R Francis about his dial plates
Letter from Samson Davis about his musket lock, with a certificate
Letter from Samson Davis about his musket lock, with a certificate
Letter from Samson Davis about his musket lock, with a certificate
Letter from Samson Davis about his musket lock, with a certificate
Letter from Joseph Clark about a machine for rope making
Letter from Joseph Clark about a machine for rope making
Letter from G Rawlinson about his corn mill
Letter from G Rawlinson about his corn mill
Letter from Samuel Hill about his machine for boring coal
Letter from Samuel Hill about his machine for boring coal
Letter from John Bolton about rewards for sweeping chimneys
Letter from John Bolton about rewards for sweeping chimneys
Letter from H Kearney about squaring the circle
Letter from H Kearney about squaring the circle
Letter from Captain John Norton about rifle percussion shell
Letter from Captain John Norton about rifle percussion shell
Letter from Mons Tissot in French, with a translation, about his turret clock
Letter from Mons Tissot in French, with a translation, about his turret clock
Letter from E Highton about his paper on atmospheric electricity
Letter from E Highton about his paper on atmospheric electricity
Letter from Mr Westmark on a set of drawings for a labourer's cottage and a lamp pedestal
Letter from Mr Westmark on a set of drawings for a labourer's cottage and a lamp pedestal
Letter from J Russell about his model of a glass roof
Letter from J Russell about his model of a glass roof
Letter from John Fennings about his method of communicating between the pilot box and engine room of steamers without the intervention of a boy to repeat the orders given
Letter from John Fennings about his method of communicating between the pilot box and engine room of steamers without the intervention of a boy to repeat the orders given
Letter from John R Remington on his improved hammer
Letter from John R Remington on his improved hammer
Letter from A J Green about domestic ventilation
Letter from A J Green about domestic ventilation
Letter from J Starforth about his drawings for a labourer's cottage
Letter from J Starforth about his drawings for a labourer's cottage
Letter from P M McGill about marine telescope
Letter from P M McGill about marine telescope
Letter from John Wood about his model
Letter from John Wood about his model