Magnetic Materials Maleic and Fumaric Acid Malonic Acid and Derivatives Manganese and Manganese Alloys Manganese Compounds Margarines and Shortenings Matches Melamine and Guanamines Membranes and Membrane Separation Processes Mercaptoacetic Acid and Derivatives Mercury, Mercury Alloys, and Mercury Compounds Metal-Complex Dyes Metallic Glasses Metallic Soaps Metallurgy Metal-Matrix Composites Metals, Surface Treatment Methacrylic Acid and Derivatives Methane Methanol Methine Dyes and Pigments Methylamines Methyl-Tert-Butyl Ether Mica Microbiocides Microencapsulation Milk and Dairy Products Mirrors Molluscicides Molybdenum and Molybdenum Compounds Monoclonal Antibodies Monosodium Glutamate Motor Fuels Mutagenic Agents.