Novum lumen medicum : wherein the excellent and most necessary doctrine of the highly-gifted philosopher Helmont concerning the great mystery of the pholosophers sulphur. is fundamentally cleared by Joachim Poleman. Out of a faithful and good intent to those that are ignorant and straying grom the truth, as also out of compassion to the sick. Written by the authour in the German tongue, and now englished by F.H. a German. - Poleman, Joachim. (printed by J.C. for J. Crook at the sign of the Ship in St. Pauls Church-yard, 1662)