Genus Dumasia
Pictures from Observations
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For Jean Baptiste André Dumas (1800–1884), a French chemist, member of the legislative assembly, minister of agriculture, a senator, and president of the Paris municipality, husband of Hermine Brongniart and son-in-law of French chemist, minerologist and zoologist Alexandre Brongniart (1770–1847). He is best known for his works on organic analysis and synthesis, as well as the determination of atomic weights (relative atomic masses) and molecular weights by measuring vapour densities. He was the co-founder and founder-editor of Annales des sciences naturelles in 1824 with Adolphe Theodore Brongniart (his brother-in-law) and Jean Victoire Audouin, and authored Die Philosophie der Chemie: Vorlesungen, geh. Im Collège de France in 1839.