Philosophia maturata an exact piece of philosophy containing the practick and operative part thereof in gaining the philosophers stone : with the wayes how to make the mineral stone and the calcinations of mettals : whereunto is added a work compiled by St. Dunstan concerning the philosophers stone : and the experiments of Rumelius and preparations of Angelo Sala, all most famous chymists in their time / published by Lancelot Colson.

Abstract

In his prefatory matter Coelson attributes this work to St. Dunstan, however no supporting evidence can be found. Reproduction of the original in the Bodleian Library.