A trained chemist, Mr Di Rupo started his political career in the 1980s.
"Experimentalism was one of alchemy's hallmarks," said Lawrence M. Principe, a historian of science at Johns Hopkins University and a trained chemist.
Another of the four is a trained chemist who had spent time in Afghanistan.
Sarin is very complex and dangerous to make, but it can be produced by a trained chemist with chemicals that are available publicly.
Holmes is a trained chemist and has served as an adjunct lecturer in chemistry at Boise State University.
It was soon after World War II that Miss Bishop, a trained chemist who had worked in a dermatologist's laboratory, developed a nondrying, nonirritating, long-wearing lipstick.
On the death of John Sturge in 1840, Arthur Albright, brother to Edmund's wife and a trained chemist, joined the partnership.
A trained chemist and physicist, The Shadow studied the reports one by one quickly, but could find nothing wrong or in any way unusual.
Before embarking on the Innskillin project, Ziraldo was running a grapevine nursery and Karl Kaiser, a trained chemist, was a home wine maker.
Bob changes his stance and enlists, not in the chemical division as a trained chemist as Edward had suggested, but as an aviator like his real father.