London: Printed for David Henry; and sold by Francis Newbery, at the Corner of St. Paul's Church-Yard, 1769. First complete edition of "the most important scientific book of eighteenth-century America" (PMM), inscribed by Benjamin Franklin to prominent Pennsylvania Quaker and merchant Thomas Livezey, Jr. Quarto, bound in full contemporary calf with elaborate gilt tooling to the spine in six compartments within raised gilt bands, morocco spine label lettered in gilt, gilt turn-ins. Illustrated with 7 copper-engraved plates, 2 of which are folding. Presentation copy, inscribed by Benjamin Franklin on the front free endpaper, “To Mr. Livesy [sic] From his obliged Friend & humble Servant The Author.” With Thomas Livezey's ownership signature to the second free endpaper, "Thomas Livezey Junior 1810." The recipient, Thomas Livezey Jr. (1723-1790), was a member of the fourth generation of the prominent Pennsylvania Quaker Livezey family. His ancestor, Thomas Livezey, the elder…