"John Rey, M.D., was a native of Bugue, on the Dordogne, in the dependencies of the Barony of Lymeil, a city of the province of Perigord, situated above the confluence of the Dordogne with the Vizère, and belonging to the Duke de Bouillon, to whom his Essays are dedicated. It is not known in what university John Rey took his Doctor's degree, but he tells us he had a brother of the same name, the proprietor of an iron foundry, with whom he lived, and where he studied Chemistry and Natural Philosophy."