Stock Photo: Antoine Laurent Lavoisier, 18th century French chemist, 1801. Among other achievements, Lavoisier (1743-1794) was one of the discoverers of oxygen, and established the laws of chemical combination.

Stock Photo: 1746-2612 Antoine Laurent Lavoisier, 18th century French chemist, 1801. Among other achievements, Lavoisier (1743-1794) was one of the discoverers of oxygen, and established the laws of chemical combination.