Articles from Science News (May 25, 1991)

Title	Author	Type	Words
Altered enzyme reverses Gaucher's symptoms.	Fackelmann, Kathy A.		365
Developing a photorefractive polymer.	Peterson, Ivars		106
Fluoridation level linked to fractures.			247
Fragments of irradiated crystals.	Peterson, Ivars		204
Manic depression: success story dims.	Bower, Bruce		578
Memories might be made of this: closing in on the biochemistry of learning.	Ezzell, Carol		2938
Monolayers reveal protein preferences.	Pennisi, Elizabeth		390
Nearby gas clouds pose cosmological puzzle.	Cowen, Ron		603
Needle imaged in animal-tissue haystack.	Peterson, Ivars		609
Panel clears testing of Lincoln's DNA.			332
Quake's psychological reverberations.	Bower, Bruce		206
Repeated zapping to melt aluminum.	Peterson, Ivars		242
Scientists seek to fight cancer with cancer.	Ezzell, Carol		610
Subcommittees vote 'big science' veto.	Raloff, Janet		927
Tiny plants challenge greenhouse plan.	Monastersky, Richard		352
Traumatic memories: lost and found.	Bower, Bruce		348
Tuning in a mysterious radio source.			532
Vitamin or just vital? Cryptic molecule leads scientists in circles.	Gibbons, Wendy		772