John Baptist, fellow of the Sorbonne, and regius professor of Greek, was born at Nismes, in Languedoc, in 1637. He made a collection of the fathers who lived in the apostolic age, which he published at Paris in two volumes folio in 1672, revised and corrected from several manuscripts, with a Latin translation and notes. He also published *Monumenta Ecclesiae Graecae*, in three vols., being a collection of Greek texts from the king's and M. Colbert's libraries, which had never before been published; and to these he added a Latin translation and notes. He intended to prosecute the work further; but his intense studies ruined his constitution, and deprived him of life in 1686.