http://en.wikipedia.org/wiki/Gerardus_Mercator
http://mathsforeurope.digibel.be/mercator.htm
_ Cartographer Jodocus Hondius 1563-1612
http://www.youtube.com/watch?v=VqNPxtOnCmE
_ the Enochian System of John Dee, session 1, section B, part 1
http://www.youtube.com/watch?v=1DaRnRQ4Q_U