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achromatic air-pump Art of Dialling Astronomy auction barometer Benjamin Martin Camera obscuras CC Description Chichester circumferentor compasses Copyright Dialling Dogen drawing instruments edition electrical machine extant Fleet Street George Adams Hadley's quadrant heliostata History of Science hydrometer Hydrostatic balance I I 0 I I I I O included instrument-makers J. R. Millburn Lady's Philosophy lectures London Magazine mahogany mahogany box Martin's catalogues Mathematical Institutions Millburn mirror money balances navigation number of items opened his Fleet optical cabinet Optical Instruments opticians orrery Oxford pair patent Philosophia Britannica planetarium plate pocket compound microscope portable price was realized Published 1766 rackwork reflecting telescope refractors Science Museum Scientific Instruments scioptic ball Senex's globes solar microscope solar system models spectacles sundial Table Clock telescopic sights theodolite thermometer Trade Cards triple weather glass Trustees tubes types universal compound microscope vellum visual glasses vols wooden