1. Commentary

   • Alan W. Schwartz

   Commentary Pages: 219 - 219

2. Concentration by Evaporation and the Prebiotic Synthesis of Cytosine

   • Kevin E. Nelson
   • Michael P. Robertson
   • Stanley L. Miller

   OriginalPaper Pages: 221 - 229

3. The Sugar Model: Catalytic Flow Reactor Dynamics of Pyruvaldehyde Synthesis from Triose Catalyzed by Poly-L-Lysine Contained in a Dialyzer

   • Arthur L. Weber

   OriginalPaper Pages: 231 - 240

4. The Specificity of Peptide Chain Extension by N-Carboxyanhydrides

   • Ke Wen
   • Leslie E. Orgel

   OriginalPaper Pages: 241 - 248

5. Homochirality of Biomolecules: Counter-Arguments Against Critical Notes

   • L. Keszthelyi

   OriginalPaper Pages: 249 - 256

6. On the Relative Content of G,C Bases in Codons of Amino Acids Corresponding to Class I and II Aminoacyl-tRNA Synthetases

   • André R. O. Cavalcanti
   • Ricardo Ferreira

   OriginalPaper Pages: 257 - 269

7. A Coupled Ecosystem-Climate Model for Predicting the Methane Concentration in the Archean Atmosphere

   • James F. Kasting
   • Alexander A. Pavlov
   • Janet L. Siefert

   OriginalPaper Pages: 271 - 285

8. Survival of Microorganisms under the Extreme Conditions of the Atacama Desert

   • Klaus Dose
   • Angelika Bieger-Dose
   • Christine Stridde

   OriginalPaper Pages: 287 - 303

9. Geoffrey Zubay (Second Edition, 2000), Origins of Life on the Earth and in the Cosmos

   • André Brack

   BookReview Pages: 305 - 306

10. Iris Fry, The Emergence of Life on Earth - A Historical and Scientific Overview

    • James P. Ferris

    BookReview Pages: 306 - 307