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Articles in Sept 25, 1999 issue of Science News

• Letters
• Trachoma stopped by mass antibiotics
  by N.S.
• Massive black holes let there be light
  by R. Cowen
• Lousy news: Pesticide resistance
  by J.R.
• High blood pressure is linked to bone loss
  by N. Seppa
• Grappling with Galaxy Formation
  by Ron Cowen
• Car-emission standards improve rural air
  by O. Baker
• Plastic mulch's dirty secrets
• Cousin of El Nino Haunts Indian Ocean
  by R. Monastersky
• Ear-infection surgery has limited gain
  by N.S.
• Smart robot orbs to aid space crews
  by P. Weiss
• Slumber's Unexplored Landscape
  by Bruce Bower
• U.S. biosurvey reveals worrisome trends
  by S. Milius
• By a nose, worms reveal new Prozac targets
  by J. Travis
• Managing sweet sounds
  by I.P.
• Chinese dig sound from ancient flute
  by B. Bower
• Clicking onto the Web's patterns
  by I.P.