Pierre Adet

Pierre-Auguste, chevalier Adet was a French scientist, politician, and diplomat. He worked with Lavoisier on a new chemical notation system, and was secretary to the scientific periodical Annales de chimie, founded in 1789. He proved that glacial [acetic acid] and vinegar acetic acid were the same substance.
In 1796, Adet was elected a member of the American Philosophical Society. He was secretary to the Minister of the Navy and the Colonies, Jean Dalbarade. He was commissioner to Saint-Domingue. He later became French ambassador to the United States, He sent Victor Collot on a reconnaissance of the Ohio River, and Mississippi River. In 1803, he was Prefect of the Nièvre département. In 1809, he was a member of the Corps législatif.