Surface solar ultraviolet radiation for paleoatmospheric levels of oxygen and ozone Joel S. Levine OriginalPaper Pages: 313 - 323
Are sulfur isotope ratios sufficient to determine the antiquity of sulfate reduction Debra Ashendorf OriginalPaper Pages: 325 - 333
γ-Irradiation of malic acid in aqueous solutions Alicia Negron-MendozaRebecca L. GraffCyril Ponnamperuma OriginalPaper Pages: 335 - 341
Urea-acetylene dicarboxylic acid reaction: A likely pathway for prebiotic uracil formation A. S. SubbaramanZ. A. KaziM. S. Chadha OriginalPaper Pages: 343 - 347
Computer experiment for selection of optical isomer during prebiotic polymerization Y. YamagataH. SakihamaK. Nakano OriginalPaper Pages: 349 - 355
A similarity ring for amino acids based on their evolutionary substitution rates Edward Argyle OriginalPaper Pages: 357 - 360
Compartmentalization of self-reproducing machineries: Multiplication of microsystems with self-instructing polymerization of amino acids Koichiro Matsuno OriginalPaper Pages: 361 - 370
Chemical evolution and the origin of life Linda G. PleasantCyril Ponnamperuma Legacy Pages: 379 - 401