Vaughan, John

James Hamilton Sr. uses this letter of attorney to provide John Vaughan of Philadelphia with the legal authority to lease or sell lands that the Commonwealth of Pennsylvania has granted to Pennsylvania's officers and soldiers.

Former Dickinson College Professor Thomas Cooper writes Parker Cleveland, a Professor of Mineralogy at Bowdoin College, and asks for advice regarding about his plans to teach a class on mineralogy at the University of Philadelphia.

Joseph Priestley sends instructions for printing his manuscript (Index to the Bible) and orders several copies of his Church History and Lectures. Priestley also tells John Vaughan that he is out of oysters.