1. Editorial

   • James P. Ferris

   EditorialNotes Pages: 81 - 81

2. Congress Report on the 7th International Conference on the Origin of Life, Mainz (F.R.G.) 10–15 July 1983

   • James P. Ferris

   Commentary Pages: 83 - 86

3. Complexes of polyadenylic acid and the methyl esters of amino acids

   • M. A. Khaled
   • D. W. Mullins Jr.
   • J. C. Lacey Jr.

   OriginalPaper Pages: 87 - 96

4. A study of the interaction of glycine and its oligohomopeptides with formaldehyde and acetaldehyde under possible primitive earth conditions

   • Ch. P. Ivanov
   • O. Ch. Ivanov
   • G. D. Mirkova

   OriginalPaper Pages: 97 - 108

5. Possible mechanism for origin of chiral specificity during origins of life

   • R. Balasubramanian

   OriginalPaper Pages: 109 - 112

6. Statistical fluctuation versus specific mechanism and the origin of the left-handed asymmetry of proteins

   • A. K. Mann
   • H. Primakoff

   OriginalPaper Pages: 113 - 118

7. Comparative analysis of the role of statistical fluctuations and factor of advantage (parity nonconservation) in the origins of optical activity

   • L. L. Morozov
   • V. V. Kuz Min
   • V. I. Goldanskii

   OriginalPaper Pages: 119 - 138

8. Code dependent conservation of the physicochemical properties in amino acid substitutions

   • Maria Pieber
   • José Tohác

   OriginalPaper Pages: 139 - 146

9. Conservation of physico-chemical amino acid properties during the evolution of proteins

   • M. Angelica Soto
   • José Tohác

   OriginalPaper Pages: 147 - 152

10. Cosmic vacuum prevents radiopanspermia

    • M. D. Nussinov
    • S. V. Lysenko

    OriginalPaper Pages: 153 - 164

11. Cosmochemistry and the origins of life

    • Lynn Margulis

    Book Review Pages: 165 - 166

12. Errata

    • Hiroshi Mizutani
    • Eitaro Wada

    Erratum Pages: 167 - 167