1. General Principles of Analytical Mass Spectrometry.- 2. Gas Chromatography/Mass Spectrometry/ Computer Instrumentation.- 3. Field Desorption and Field Ionization.- 4. Positive and Negative Chemical Ionization Mass Spectrometry.- 5. Use of Pyrolysis/Gas Chromatography/Mass Spectrometry in Environmental Analysis.- 6. Atmospheric Pressure Chemical Ionization Mass Spectrometry.- 7. Mass Spectral Retrieval and Interpretation Systems.- 8. Gas Chromatography/Mass Spectrometry in Water Pollution Studies.- 9. Gas Chromatography/Mass Spectrometry in Air Pollution Studies.- 10. Poly Cyclic Aromatic Hydrocarbons.- 11. Polychlorinated Biphenyls.- 12. Polychlorodibenzo-p-Dioxins and Polychlorodibenzofurans.- 13. DDT and Related Compounds.- 14. Volatile Halocarbons.- 15. Phthalates and Related Plasticizers.- 16. Organometallic Compounds.- 17. MAss Spectrometry of Carbamates, Thiocarbamates, Dithiocarbamates, Urea, Thiourea, and Carboxanilide Pesticides.- 18. Mass Spectrometry of Chlorinated Polycyclic Hydrocarbon Pesticides.- 19. Triazine Herbicides.- 20. Other Herbicides: Diphenyl Ethers, Dinitroanilines, Dinitrophenols, Substituted Benzoic Acids, Phosphonates, Uracils, and Dipyridyliums.- 21. Organophosphorus Compounds.- 22. Fungicides.- 23. Pyrethroids.- 24. Mass Spectrometry of Some Female Lepidopteran Sex Pheromones and Related Compounds.- 25. Mass Spectrometry of N-Nitrosamines.- 26. Other Industrial Pollutants and Natural Toxins.