Instrucções e Cautelas Practicas sobre a natureza, differentes especies, virtudes em geral, e uso legitimo das aguas mineraes, principalmente de Caldas; com a noticia daquellas, que são conhecidas em cada huma das Provincias do Reino de Portugal, e o methodo de preparar as aguas artificiaes. 2 parts in 1 vol.
Coimbra, Na Real Imprenta da Universidade, 1810.
8vo. XXIV, 350 pp., (1) f. with errata; VIII, 174 pp., (1) f. with errata. With 2 plates & 1 diagram, both folding. Recent half calf, spine gilt. Ownership signature & stamp on title p., very occasional spotting, tear repaired in upper margin of plate III, tiny burn hole in Vol. I, p. 182/83 with loss of 3 letters.
Though mineral spas in Portugal had been famous since Roman times, they became fashionable in the late 18th century. Tavares classifies the waters in the different regions of Portugal and the Azores, studies their characteristics and notes their sources, from rain water, snow, etc. He assesses the medical attributes of the waters, gives details of the treatments during the cure and afterwards, and the necessary diet that should be observed. Tavares taught medicine at Coimbra and was a noted pharmacologist, his early works being highly praised, not only in Portugal but also in France and Germany. He was physician to Queen Maria I, but his state of health prevented him from accompanying her when the court sailed to Brazil. He wrote several works, one of which, Observações e reflexões sobre o uso proveitoso e saudavel da quina na gota, was translated into both French and English, according to Innocêncio.
Innocêncio III, 72.