REUMONT, Gerhard || MONHEIM, Johann Peter Joseph. Analyse des eaux sulfureuses d'Aix-La-Chapelle. 1810.

First edition signed by the author Gerhard Reumont (1765-1828).

German doctor, Reumont works in Aachen from 1793. In 1804, he works on the thermal journey of Impératrice Joséphine. Then by order of Napoléon he becomes "thermal waters inspector" .

Aix was part of the French Empire until 1814, and the spa being frequented by the imperial couple, Reumont and Monheim published their study in French.