Imprint SourcesIndagociones Sobre et estanado del Cobre. - 1803
Recueil des mémoires sur la poudre à canon. - 1810 - 1813
French chemist Joseph Louis Proust (1754-1826) [The original uploader was HappyApple at English Wikipedia. / Transferred from en.wikipedia to Commons. -- Public domain -- http://commons.wikimedia.org/wiki/File:Proust joseph.jpg]