Stock Photo: Antoine Laurent Lavoisier (1743-1894) French chemist, demonstrating his discovery of oxygen, 1776. On the table in the right background of the picture is his calorimeter, From Louis Figuier Vies des Savant Illustres du XVIIIe Siecle, Paris 1874, Engraving

Stock Photo: 1746-2532 Antoine Laurent Lavoisier (1743-1894) French chemist, demonstrating his discovery of oxygen, 1776. On the table in the right background of the picture is his calorimeter, From Louis Figuier Vies des Savant Illustres du XVIIIe Siecle, Paris 1874, Engraving