HERNANDEZ DE GREGORIO, Manuel. DICCIONARIO ELEMENTAL DE FRAMACIA, BOTANICA Y MATERIA MEDICA O APPLICACIONES DE LOS FUNDAMENTOS DE LA QUIMICA MODERNA A LA FARMACIA EN TODOS SUS RAMOS... Madrid: Imprenta Real, 1803. Second edition. 3 volumes, complete. Quarto. Vol. 1: 9 plates; vol. 2: 3 plates, 1 foldout chart; vol. 3: 1 plate, 1 foldout chart. Four plates have darkened in what appears to be the result of a chemical reaction during the printing process. They are vol. 1, plates 2 & 3, vol. 2, plate 2, and the plate in vol 3. Bound in dark brown leather, which is dried and worn, with hinges weak and/or slightly cracked. Front flyleaf of vol. 3 detached. Overall an acceptable set.