“I want to see indigo now—now!”
“I want to see indigo now—now!” Indigo plant extract applied to paper Oliver Wolf Sacks (1933-1915), a neurologist, naturalist, historian of science, and writer described in his 2012 New Yorker Article, “Personal History Altered States – Self-experiments in chemistry,” his rapturous color revelation of seeing the “huge, trembling, pear-shaped blob of the purest indigo”. This […]