Richard Kirwan, an Irish chemist, born in county Galway about the middle of the 18th century, died in Dublin in 1812. He was educated at Trinity college, and at the Jesuits' college of St. Omer in France. In 1779 he went to England, and settled near London, where he devoted himself to the study of chemistry and geology. Having been admitted a member of the royal society, he read several valuable papers before that body, for which the Copley medal was awarded to him in 1782. Returning to Ireland in 1789, he was chosen president of the royal Irish academy, and of the Dublin society, and afterward became a member of the principal learned societies of Europe. He was a frequent contributor to the "Transactions" of the various scientific societies of Dublin and London. His most important works are " An Essay on Phlogiston and the Composition of Acids," in which he labors to reconcile the chemistry of the alchemists with that of modern times; "Elements of Mineralogy;" and "Essay on the Analysis of Mineral Waters." Lavoisier translated the first, and appended a refutation of the theory.