1. 1986 Issol meeting

   • J. P. Ferris

   Commentary Pages: 1 - 1

2. On the formation and observation of complex interstellar molecules

   • Eric Herbst

   OriginalPaper Pages: 3 - 19

3. Photochemical reactions in interstellar grains photolysis of co, NH₃, and H₂O

   • V. K. Agarwal
   • W. Schutte
   • F. Baas

   OriginalPaper Pages: 21 - 40

4. Trace elements in chemical evolution, I

   • Kensei Kobayashi
   • Cyril Ponnamperuma

   OriginalPaper Pages: 41 - 55

5. Trace elements in chemical evolution

   • Kensei Kobayashi
   • Cyril Ponnamperuma

   OriginalPaper Pages: 57 - 67

6. Rationalization of some genetic anticodonic assignments

   • James C. Lacey Jr.
   • Leo M. Hall
   • Dail W. Mullins Jr.

   OriginalPaper Pages: 69 - 79

7. Limits on asymmetric orthopositronium formation in high Z optically active molecules

   • J. van House
   • A. Rich
   • P. W. Zitzewitz

   OriginalPaper Pages: 81 - 87

8. Book reviews

   • Michael J. Gaffey
   • Charles W. Boylen

   BookReview Pages: 89 - 91

9. Planetary biology internship program

   • David Bermudes

   Announcement Pages: 93 - 93

10. The fifth issol meeting and the eighth international conference on the origin of life

    Announcement Pages: 94 - 94