Cambridge, Trinity College MS. O.3.27. 126 folios. Paper. 276x210mm. 15th Century. f1 Prologus Monaldi monarchi consolatoris reymundi magni in librum de secretis nature seu quinte essencie quem compilauit Idem R. as instancia, dicti Monaldi. (Raymundus de quinta essencia). [Diagrams on f10, f50 'figura doctrine in practica faciendi sulphura', f88v (furnace)]. f99 Anima Artis transmutatorie [Ends] f120v 'Regnante Rege Roberto anno ab Incarn. domini millesimo ccc xximo'. f122 Diagram of volvel in seven layers, marked with letters of the alphabet in red and blue. f123 Diagram 'Tabula in confectione Perlarum'. f123v Diagram 'Tabula perfectionis'. f124v Diagram 'Figure significationis'. f125 Diagram. f125v Diagram 'Tabula de Mixtione Principiorum'.