Wood, [Ian]2009-07-282009-07-282009-07-28http://hdl.handle.net/10222/12040One letter, one page.One letter to James Dinwiddie from Ian Wood dated 1791.enConducterMachineElectrical179117901789Ian WoodArchimedesAstronimical clockPrismsJames DinwiddiePumpBladderOpticalCharcoalAir bottlesMicroscopeText