Abstract

ABSTRACT On November 14th, 1770, the young chemist Antoine-Laurent Lavoisier (1743–1794) read his ‘Sur la nature de l’eau’ to the Académie des Sciences. Eventually published in the Académie’s journal in 1773, the two-part memoire challenged a widely held view of earlier experimenters: the transmutability of matter. Specifically, experimenters such as Jean-Baptiste Van Helmont (1580–1644), Robert Boyle (1627–1691), and Ole Borsch (1626–1690) had noted that when distilled water was heated in a glass vessel, a small amount of earthy residue remained, seemingly demonstrating the transmutation of water into earth. Antoine-Laurent designed an experiment to determine whether it was really to the ‘destruction of a portion of the water that this residual earth owed its origin, or if it was to that of the glass.’ In partial agreement with Jean-Baptiste Le Roy (1720–1800), a fellow academician, Antoine-Laurent aimed to disprove the antiquated belief – the transmutation of one element into another – by using a glass vessel from the alchemist’s cabinet: the pelican.

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