SOURCE: "The Man Who Evolved" by Edmond Hamilton (Wonder Stories, April 1931)

DESCRIPTION: "He had become simply a great head! A huge hairless head fully a yard in diamater, supported on tiny legs, the arms having dwindled to merehands that projected just below the head! The eyes were enormous, saucer-like, but the ears were mere pin-hles at either side of the head, the nose and mouth being similar holes below the eyes!" ("The Man Who Evolved" by Edmond Hamilton)

NOTES: Dr. Pollard subjects himself to advancing levels of radiation to push himself up the evolutionary chain. of course, once he becomes a giant brain monster he wants to take over the world. ("Gee, Brain, what are we going to do tonight?")

HISTORY: This is one of the first SF stories to deal with accelerated evolution, making the classic mistake of evolution of an individual, rather than a species. As Asimov points out in Before the Golden Age, radiation would not evolve the subject, merely kill it.