Rotographs of two manuscripts of the Computus naturalium, viz.:- Oxford, Bodl. Lib., MS. Ashmole 341, ff. 1-60b, and Erfurt, Stadtbibl., MS. Amplon F. 394, ff. 145-147b.
Rotographs of two manuscripts of the Summa grammaticae of Roger Bacon, viz.:-Cambridge, Peterhouse, MS. 191, ff. 30-52 (with enlarged reproductions of ff. 30-34) and Worcester Cathedral, MS. Q. 13, ff. 5-25.
Rotographs of Paris, Bibl. Nat., MS. lat. 16617, ff. 2-64, the treatise Introductiones in Logicam, attributed to William of Durham, but perhaps by William of Lincoln (see Glorieux, op. cit., i, p. 290).
Rotographs of (1) Paris, Bibl. Nat., MS. lat. 7440, ff. 38-40, 25-32, Metaphysica de vitiis in studio theologiae;-(2) ibid., MS. lat. 16089, ff. 91b-97, Quaestiones naturales mathematicae.
Rotographs of Oxford, Bodl. Lib., MS. Digby 76, which contains: (1) ff. 1-35b, Book II, parts 1-3, of the Naturalis philosophia;-(2) ff. 36-47, De corporibus coelestibus.
Rotographs of (1) Oxford, Bodl. Lib., MS. Digby 190, ff. 29-37b, Book I of the Naturalis philosophia;-(2) ibid., ff. 38-43, the treatise In Meteora, perhaps in fact by St. Albertus Magnus (according to P. Glorieux, Répertoire des Maîtres en Théologie de Paris au XIIIe Siècle, ii, Paris, 1933, p....
Rotographs of:-(1) Oxford, Bodl. Lib., MS. Digby 67, ff. 117-124b, a fragment of the Summa de sophismatibus et distinctionibus;-(2) ibid., MS. Digby 204, ff. 48-75b, the treatise Summulae dialectices, attributed to Bacon, but perhaps by Robert Kilwardby or Petrus Hispanus (see Glorieux, op. cit....