Last Friday, April 16, 1943, I was forced to interrupt my work in the laboratory in the middle of the afternoon and proceed home, being affected by a remarkable restlessness, combined with a slight diziness. At home I lay down and sank into a not unpleasant intoxicated-like condition, characterized by an extremely stimulated imagination. In a dremlike state, with eyes closed (I found the daylight to be unpleasantly glaring), I perceived an un-interrupted stream of fantastic pictures, extraordinary shapes with intense, kaleidoscopic play of colors.