ISAAC DE, a learned Protestant writer, of French original, was born at Niort in 1659. He was forced into Holland to avoid the execution of a sentence upon him, which condemned him to make the amende honorable; and this for having broken the royal signet, which was put upon the door of a church of the Reformed, to prevent the public profession of their religion. He went to Berlin in 1694; was made chaplain to the king of Prussia, and counsellor of the royal consistory. He died in 1738, aged 79, after having published several works: as, 1. Defense de la Doctrine des Reformes. 2. A Translation of the New Testament and Notes, jointly with M. Lefant; much esteemed by the Reformed. 3. Dissertation sur les Adamites de Boheme; a curious work. 4. Histoire Critique de Manichee et du Manichisme, 2 tom. in 4to. This has been deemed by philosophers an interesting question, and nobody has developed it better than this author. 5. Several dissertations in the Bibliothèque Britannique.—Mr Beausobre had strong sense with profound erudition, and was one of the best writers among the Reformed; he preached as he wrote, and he did both with warmth and spirit.