Table of Contents August 1997

Discover Magazine's mission is to enable readers to lead richer lives by explaining and expanding their universe.  Each month we bring you in depth information and analysis from various topics ranging from technology and space to the living world we live in.
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When soldiers returning from the war complained of mysterious illness, the Pentagon called it stress. But the real culprit, it appears, was deadly chemistry.
The universe is full of patterns, but how did it get that way?
Two thousand years ago the residents of northwest Europe had the puzzling habit of killing certain men, women, and children and tossing the bodies into bogs. Today their mummies are casting light on the murky times in which they lived.
Through the ocean just east of Borneo runs an invisible line that separates the world of tigers from the world of kangaroos. Getting across that line may have seen what made our ancestors truly human.