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Sting Chemical Helps Make Arthritis Drug

New Machines and Gadgets

Scientists Find How Mercury Ore Deposited

New Drug Succeeds as Heroin Antidote

Honorable Mentions in Science Talent Search

Squirrels Are Menace to Pine Reforestation

New Atomic Clock

In Science Fields

[Photograph]: On Target

Nature Ramblings: Opossum

Clues Point to Work Decline of Older Workers

International Science