Feature

Electronic Materials: A Resources Bonus

Books

Monopoles Oughtn’t to Be a Monopoly

Immunizing against Pregnancy

Preventing Breast Cancer Relapses

Readers Debate ‘The Great Nuclear Power Debate’

Off the Beat: Physicists vs. Mathematicians: A Theory of Groups

Natural Sciences

The Upsilon: The Heaviest Particle Yet

Insect Resistance Climbs, Academy Says

Military R&D: Technology on the March

Computer Checkers