British Library MS. Sloane 710. Paper. Quarto. 47 folios. 17th Century. Concordantia Magna; hoc est, linea recta, sive via linearis vera ad metam auream optatam facillime perducens; in qua philosophi omnes sapientissimi circa regimen et praxin medicinae universalis vere et unanimiter concordantur. [Treatise on the philosophers stone extracted from various authors.] f.153. Proemium begins: 'Bonus. Dicimus hanc artem esse omnibus certiorem'. Book begins: 'Via Veritatis. Multi celebrem artem Alchymiae'.