From 1775–80 he studied physics and chemistry under Lavoisier and Berthollet in Paris, where he also got involved with the administration of saltpeter.
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The Geographical Society was founded at a meeting, 15 December 1821, in the Paris Hôtel de Ville and among its 217 founders were some of the greatest scientific names of the time: Pierre-Simon Laplace, the Society's first president; Georges Cuvier, Charles Pierre Chapsal, Vivant Denon, Joseph Fourier, Gay-Lussac, Claude Louis Berthollet, Alexander von Humboldt, Champollion, François-René de Chateaubriand among them.