Lumen de Lumine

Take notice then that our Mercury cannot be coagulated without our Sulphur, for Draco non moritur sine suo Compare: it is water that dissolves and putrifies Earth, and Earth that thickens and putrifies Water. You must therefore take two principles to produce a Third Agent, according to that dark Receit of Hali the Arabian. Accipe Canem Masculum Corascenum, & Catellam Armeniae, Conjunge, & parient tibi Catulum coloris Coeli. Take (saith he) the Corascen Dog, and the Bitch of Armenia, put them both together, and they will bring thee a skie colour’d Whelp. This skie colour’d whelp is that Soveraign, admir’d, and famous Mercury, known by the Name of the Philosophers Mercury.