Articles from Science News (April 4, 1987)

Title	Author	Type	Words
AIDS vaccine: time for human tests?	Weisburd, Stefi		415
Another launch failure.	Eberhart, Jonathan		207
Border project may flood Maya sites.			183
Cache withdrawal at classic Maya site.	Bower, Bruce		435
Cancer-killers from macrophages.	Raloff, Janet		545
Comets: life in an imperfect icebox.	Eberhart, Jonathan		648
Fingerprinting the mean bees.			414
Fungi feel their way to feast.	Weisburd, Stefi		708
How honest is your honey?			202
Less colitis among smokers.			191
Nicotine: addictive and spreads cancer?	Edwards, Diane D.		605
Pollen probe of early Maya farming.			431
San Salvador: small quake, big problems.	Silberner, Joanne		507
Still looking for cancer immunotherapy.	Edwards, Diane D.		586
Superconductivity: a hard frost.	Thomsen, Dietrick E.		421
The inner earth is coming out; geophysicists are on the cutting edge of the planet's deepest frontier.	Weisburd, Stefi		1940
U.S. river quality: not all signs are good.	Raloff, Janet		459
What triggers AIDS?	Silberner, Joanne		1575