In 1551 excavations in Rome brought to light a third-century statue of Hippolytus, now in the Lateran Museum; the upper part of the body has been “restored”. On the sides are inscribed an “Easter Canon” that he computed and a partial list of his works.[36] The posture of the body, which is that of a seated teacher, made episcopal dignity more than probable, so for the official description of the statue Pius IV, the next pope, adopted the Portus tradition. Hence as “Bishop of Portus” the saint was generally known until the middle of the nineteenth century. In 1701 Jakob Gronov published, in the tenth volume of his _Thesaurus Graecarum Antiquitatum_, Book I—no more was then known—of a work called “Philosophumena” or “Philosophizings”, that was commonly, although not universally, referred to Origen. Books IV-X of this work were discovered in 1842 and nine years later were published as Origen’s by the editor, B. E. Miller.[37] But the contents of the work were soon proved by competent scholars—notably Döllinger[38]—to make Origen’s authorship impossible; the necessary conditions were fulfilled by Hippolytus alone. This proof established also the Hippolytean authorship of certain other disputed works; and the evidence thus assembled showed that Hippolytus was both a bishop and a Roman. Incidentally, it has been established also that the correct title for the above work is “Refutation of All Heresies”, and that “Philosophumena” was the sub-title of Books I-IV (not as is sometimes stated of Book I alone). But “Philosophumena” is generally accepted by modern writers. The Portus tradition, however, still lingered on for a time and is accepted in the _Ante-Nicene Fathers_, both by the original editor J. H. Macmahon (1868) and by the American reviser Bishop A. C. Coxe (1886). Bishop Lightfoot supported a compromise theory that made of Hippolytus a sort of suffragan bishop of Rome with special jurisdiction over Portus.[39] But neither position is now tenable. For the facts of Hippolytus’s life we have practically only what he himself tells us in scattered allusions; only once (Philosophumena IX, 7) does he relate contemporary events at any length. Since in his later works he speaks of himself as aged, his birth must be placed _ca._ 160. Tradition makes him a disciple of Irenaeus, a highly probable supposition even though his works are silent on the subject. He became a presbyter of the Roman church under Zephyrinus (198?-217, or perhaps earlier) and won great respect for his learning and eloquence: on one occasion he was deputed to preach in the presence of Origen.[40] But his learning brought him into a mortal conflict with a fellow presbyter, one Callistus.