Lavoisier: an elementary system for the new chemistry

What changed

Chemistry acquired a coherent quantitative language and operational structure for identifying substances and reactions.

Scientific scope

The 1789 Traité as an organizing synthesis; it does not claim every experiment or term and retains Paulze Lavoisier's documented labor separately.

Evidence

The linked sources identify this contribution and its scope. WRS has not independently reconstructed the scientific claims. The treatise included substances later rejected as elements and did not originate every experiment or term it synthesized. Marie-Anne Paulze Lavoisier’s documented illustrations and editorial labor remain visible as a separate contribution.

Contributors

• Antoine-Laurent Lavoisier · SCIENCE: Named source author of the scoped work; individual effort shares are not measured.

• Library of Congress: Traité élémentaire de chimie (1789)
• Science History Institute: Antoine-Laurent Lavoisier

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

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