Medicine: More & Better Penicillin?

Every jingle-learner knows what little boys are made of, but science is not so sure about penicillin. Hundreds of U.S. and British scientists have searched for years, trying to find out. They still don’t know for certain. But the U.S.-British findings, summarized in Science, gave hope of two important possibilities: 1) penicillin’s active ingredient might be synthesized to make the drug much more plentiful; 2) the ingredient might be altered to make the drug more effective.