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COLUMNS
Physica • Mortal Coil
Radioactive decay is nature's clock -- the key to dating dinosaur bones and human artifacts. But just how predictably does it wind down?
HANS CHRISTIAN VON BAEYER
Field Notes • Return to Sender
Aboriginal design is still the best place to start if you want to get your boomerang back
DANIEL DROLLETTE
ESSAYS & COMMENT
Getting to Know You
The year 2000 census could make all Americans count -- if statisticians rather than politicians have the last word
ELLEN WALTERSCHEID
FEATURES
Escape from Moscow
Smallpox, once thought to be on death row, was mass-produced instead by a secret Soviet biological-warfare program. So why is it still scheduled for execution?
WENDY ORENT
Cannibals
For the Aché people of Paraguay, a French anthropologist found, fending off the ghosts of the dead meant eating their bodies
PIERRE CLASTRES
TRANSLATED BY PAUL AUSTER
REVIEWS
Curiouser and Curiouser
From duck-billed platypus to "Hottentot Venus": imposing order on nature has never been easy
PETER MASON
Books in Brief • Code Read
PLUS: Lost city of Arabia; the engineer's art
LAURENCE A. MARSCHALL
DEPARTMENTS
Initial Conditions • Editor's Notebook
Killer at Large?
PETER G. BROWN
Peer Review
Letters from Readers
Working Hypotheses • Analysis and Action
RODNEY W. NICHOLS
Quanta
Nano-manipulating DNA; new ice in 2-D; keeping your balance in space; worms as geological indicators
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