British Library MS. Sloane 330. Paper. Quarto. 44 folios. 15th Century. [Formerly belonging to Francis Bernard, and numbered 91.] 1. f1 Johannis de Rupescissa de quinta essentia libri duo. [Prooemium missing.] 2. f40v Tractatulus 'de virtutibus septem herbarum secundum cursum septem planetarum', e libris Kyranidarum.