Cleghorn, William2009-07-282009-07-282009-07-28http://hdl.handle.net/10222/12095One letter , three pages.One letter to James Dinwiddie from William Cleghorn dated Jan 2, 1781.enExperimentCrawfordCylindersElectrictyJames DinwiddieRobinsonJan 2, 1781Text