HADLEY, John (1682-1744). The nature and use of Hadley’s Quadrant, with a preface, containing the theory on whic that noble and useful instrument is founded and a description of the Nonius. [London?]: [s.n.], [s.d., entre 1770 y 1800]. 8vo (20 x 12 cm). viii, 24 pp. Ejemplar sin encuadernar, falto del grabado frontispicio desplegable.