1. Editorial

   EditorialNotes Pages: iii - iii

2. Editors' note

   Scientific Application of Baseline Observations of a Atmospheric Composition (SABOAC) Part 2 Pages: 2 - 2

3. Methane, carbon monoxide and methylchloroform in the southern hemisphere

   • P. J. Fraser
   • P. Hyson
   • M. A. K. Khalil

   Scientific Application of Baseline Observations of a Atmospheric Composition (SABOAC) Part 2 Pages: 3 - 42

4. World-wide increase in tropospheric methane, 1978–1983

   • Donald R. Blake
   • F. Sherwood Rowland

   Scientific Application of Baseline Observations of a Atmospheric Composition (SABOAC) Part 2 Pages: 43 - 62

5. Background ozone and anthropogenic ozone enhancement at niwot ridge, Colorado

   • D. D. Parrish
   • D. W. Fahey
   • F. C. Fehsenfeld

   Scientific Application of Baseline Observations of a Atmospheric Composition (SABOAC) Part 2 Pages: 63 - 80

6. Global transport and inter-reservoir exchange of carbon dioxide with particular reference to stable isotopic distributions

   • G. I. Pearman
   • P. Hyson

   Scientific Application of Baseline Observations of a Atmospheric Composition (SABOAC) Part 2 Pages: 81 - 124

7. Interannual variation of atmospheric CO₂ concentration

   • M. L. Thompson
   • I. G. Enting
   • P. Hyson

   Scientific Application of Baseline Observations of a Atmospheric Composition (SABOAC) Part 2 Pages: 125 - 155

8. Aerosols in Alaskan air masses

   • G. E. Shaw

   Scientific Application of Baseline Observations of a Atmospheric Composition (SABOAC) Part 2 Pages: 157 - 171

9. Sulfate and methanesulfonate in the maritime aerosol at Cape Grim, Tasmania

   • G. P. Ayers
   • J. P. Ivey
   • H. S. Goodman

   Scientific Application of Baseline Observations of a Atmospheric Composition (SABOAC) Part 2 Pages: 173 - 185

10. The interpretation of baseline atmospheric turbidity measurements at Cape Grim, Tasmania

    • C. M. R. Platt
    • G. R. Patterson

    Scientific Application of Baseline Observations of a Atmospheric Composition (SABOAC) Part 2 Pages: 187 - 197