Articles from Science News (May 12, 1990)

Title	Author	Type	Words
'First lab' attributed to ancient Greeks.	Amato, Ivan		566
Australian site yields early human dates.	Bower, Bruce		426
Average attractions: psychologists break down the essence of physical beauty.	Bower, Bruce		1165
Birthplace breeders: look homeward, turtle.	Cowen, Ron		605
Blocking breast cancer: do faulty estrogen receptors make a meaner, tougher tumor?	Fackelmann, Kathy A.		1499
Drug-resistance gene saves mouse marrow.	Weiss, Rick		362
Leaving the pits behind.			306
Nettlesome weed causes asthma for some.			522
Secret of the vacuum: speedier light.			598
South Pole's 'hot' snow: Chernobyl source?	Monastersky, Richard		395
Straightening the magnetic tilts of planets.	Eberhart, Jonathan		591
Swallow hard: tobacco is nutritious.	Raloff, Janet		245
The dead and the plastered.			308
Tick protein tapped to attack blood clots.	Stolzenburg, William		400
Unveiling a galaxy's power source.	Peterson, Ivars		517
Vitamin C may reduce hypertension risk.	Fackelmann, Kathy A.		465
White paper - with less dioxin.	Raloff, Janet		336