ZACH, Franz Xaver, Freiherr von. Tabulae Motuum Solis novae et correctae, ex theoria gravitatis et observationibus recentissimis erutae, Gotha: apud Carolum Gulielmum Ettinger, 1792, 4°, engraved frontispiece (spotted and slightly creased, title and preliminaries also creased, library markings); Tabulae Motuum Solis novae et iterum correctae ex theoria gravitatis clarissimi de La Place et ex observationibus recentissimis in specula astronomica ernestina habitis erutae, Gotha: in libraria Beckeriana, 1804, 4°, 2 works in one volume, contemporary boards (spine lacking, corners worn). [cf. Brunet V, 1517] Provenance: JCL