London, Wellcome Institute MS. 712. 4 + 130 + 4 folios. 160x120mm. 15th Century [c.1475.] Johannes de Rupescissa. De consideratione quintae essentiae. [Followed by a list of medicines and their qualities, an anonymous 'Trattato delle urine', and the 'Giudicio dell urine' by Aegidius Corboliensis, etc., with a few alchemical and medical receipts in Italian and Latin.]