 The conclusion to the De scientia experimentali is important. Bacon presents the ideal of the “philosophical chancellor”who will organize science and its technological products for the benefit of Res publica Christiana. In this, he is influenced by the important “Mirror of Princes” from the Islamic World, the Sirr-al-‘asrar (Secretum secretorum) (OHI, V). Stewart C. Easton (1952) proposed that this work was the guiding vision for Bacon’s reform of science. Williams (1994) has argued that Bacon completed the edition of this work after his return to Oxford ca. 1280 or a few years before that date. Still, there is much cross reference between this work and Bacon’s writings in Paris ca. 1266–71.