  FitzRalph was a prolific author and most of the works from his mature period are of a theological or pastoral nature, or, indeed, polemical writings concerned with the anti-mendicant controversy.  And whereas some topics are dealt with such as future contingents (in the Summa de Quaestionibus Armenorum) or the question of dominium, it is to his earlier work, the Lectura on the Sentences, dating from 1328–29, that we must look to for more philosophical themes. FitzRalph was also the author of a (now lost) Commentary on the Physics which brought him into conflict with Richard Kilvington. Furthermore, some logical works once attributed to FitzRalph are now to be attributed to another Armachanus, John Foxhalls (Johannes Anglicus) (Dunne 2013b). The most extensive treatment to date of FitzRalph’s thought as presented in the Lectura is that by Gordon Leff (1963). Leff’s book gives a good overview of FitzRalph’s thought and is generous with quotations from the text itself. What emerges from Leff’s examination is that a good deal of FitzRalph’s Lectura was not concerned with theology at all, or at least only tangentially so. For example, when dealing with the theological problem of the creation of the world, the discussion focuses on topics (such as the eternity of the world) that FitzRalph had already dealt with in his commentary on the Physics (Dunne 2008).