1. Systematic Approach to Elements
Portrait of Monsieur Lavoisier and his Wife By Jacques-Louis David

2. Elements of Chemistry
By Antoine Lavoisier

3. Mass Measurements Well Established

4. Law of Conservation of Mass
Respiration Experiment by Antoine Lavoisier
Sugar + Oxygen Carbon Dioxide + Water

5. Law of Definite Composition
Cupric Carbonate
51.39% Copper
9.72% Carbon
38.89% Oxygen
Joseph Louis Proust
Natural Sample
Synthetic Sample

6. Alloys Multiple Oxide Mistaken Assays Brass Claude Louis Berthollet
Stannic Oxide
Stannous Oxide
Mistaken Assays

7. Berzellius Experiment
Jons Jakob Berzellius