books.google.co.uk - What distinguished the true alchemist from the fraud? This question animated the lives and labors of the common men—and occasionally women—who made a living as alchemists in the sixteenth- and seventeenth-century Holy Roman Empire. As purveyors of practical techniques, inventions, and cures, these...http://books.google.co.uk/books/about/Alchemy_and_Authority_in_the_Holy_Roman.html?id=j-EdcPVGWZwC&utm_source=gb-gplus-shareAlchemy and Authority in the Holy Roman Empire
