Just three of the many intricate drawings from the book Cajal’s Butterflies of the Soul by author, Javier DeFelipe - a research professor at the Cajal Institute in Madrid. Ninety one additional Scientists are also featured in the book, but Cajal (the Nobel Prize-winning 'father of modern neuroscience') is singled out in the title. His illustrations have Twombly-esque qualities - amazing since they were executed in the late 1800's...