CHT167352 Antoine Lavoisier (1743-94) and his Experiments into Respiration (pen & ink and sepia wash on paper) by Lavoisier, Marie Anne Pierrette (1758-1836); Private Collection; (add.info.: Experiences de Lavoisier sur la respiration; the artist, the wife of the scientist can be seen writing and taking dictation on the right; discovered air was a mixture of oxygen and nitrogen, worked on combustion theory and chemical nomenclature;); 穢 Archives Charmet; French, out of copyright.