ocr: September 1993 A - Cahners Publication - - - - - - AD - - - - - Research & Development MOLECULAR MODELING Speeding Chemical Development Page28 Leroy Hood, R&D. Magazine's 1993 Scientist of the Year Page38 Tip-top SPM Tips Pagr57 Also: Making Your Lab Secure, Smart RGA Sensors, New pH Meter Potpourri, Blue Laser Advances, Chromium Coating Replacements