Optimism: Great Amateurs in Science

"[T]hey have no formal training. They are often ignored by those who do. In some cases they don't live to see the scientific recognition they so richly deserve. Who are they? They are the nonprofessional scientists who every now and then make their professional counterparts green with envy for the enormous contributions they make to their discipline. Here, in no particular order, meet ten amateur scientists who secured such an enviable place in the history of science." -- from the website. <http://www.pbs.org/
wgbh/nova/orchid/amateurs.html>