NOVA - A television program by PBS exploring the struggles of Percy Julian in his scientific endeavors.
DePauw University - biographical sketch of Julian.
American Chemical Society - part of the National Historic Chemical Landmark series dedicated to Percy Julian.
National Academy of Sciences
Google - Research database allows searching of the scholarly literature.
NOVA - part of the Percy Julian television episode, this interactive allows you to see what happens at the molecular level in the production of cortisone.