LEFEVRE, Traicté de la Chymie, 1660

First edition.
Nicolas Lefèvre [id is Le Febvre] was a chemistry teacher at the Jardin des Plantes. He then became a member of the Royal Academy in London, a city to which he had come at the request of King Charles II of England.
A skilful chemist, people in the art praise the exactness with which he describes the operations and reports their results. It also indicates the means of recognizing fraud in pharmaceutical preparations.
A great admirer of Paracelsus, he claimed to have discovered, like him, a secret for restoring or maintaining all the vigor of youth in advanced age.
His chemistry course was a great success, went through several editions and was translated into several languages.