Treatises, chiefly astronomical and alchemical: Fol. 3. 'Liber magistri Rogeri Hereford de iudiciis astronomicis', beg. 'Quoniam regulas artis': some leaves are wanting after fol. 5: at fol. 7 is a note on making almanacs, etc. Fol. 10v. 'Liber de tribus generalibus iudiciis astronomie ex quibus cetera omnia defluunt, editus a magistro Rogero Hereford', in three books with prologue: beg.…