For more about alchemy

Heinrich Khunrath. Amphitheatrum sapientiae aeternae. [Hamburg: s.n., 1595].

For more information about alchemy, including the work of Heinrich Khunrath, see such sites as:

• Adam McLean's Alchemy web site and virtual library which contains thousands of pages on alchemy in all its facets. The site provides much text and many images, supplemented by extensive bibliographical information about primay sources (both printed books and manuscripts), numerous articles, introductory and general reference material on alchemy;
• Pythagorean Brotherhood by Anders Sandberg;
• The Alchemists by Anders Sandberg;
• The Solificati by Andrew E. Larsen;
• The Clickable Tree of Life by the Wall family.

See also biographical information on Khunrath by Richard S. Westfall for the Catalog of the Scientific Community, part of the Galileo Project, "a hypertext source of information on the life and work of Galileo Galilei (1564-1642) and the science of his time," by Albert Van Helden and Elizabeth Burr.

See also the Bibliography about Khunrath and his works.