1. Oligomerizations of deoxyadenosine bis-phosphates and of their 3′-5′, 3′-3′, and 5′-5′ dimers: Effects of a pyrophosphate-linked, poly(t) analog

   • J. Visscher
   • C. G. Bakker
   • Alan W. Schwartz

   OriginalPaper Pages: 369 - 375

2. The γ-irradiation of aqueous acetic acid-clay suspensions

   • Alicia Negrón-Mendoza
   • Rafael Navarro-González

   OriginalPaper Pages: 377 - 387

3. Prebiotic synthesis of orotic acid parallel to the biosynthetic pathway

   • Y. Yamagata
   • K. Sasaki
   • I. Matsumoto

   OriginalPaper Pages: 389 - 399

4. Copper-catalyzed amino acid condensation in water — A simple possible way of prebiotic peptide formation

   • Bernd M. Rode
   • Michael G. Schwendinger

   OriginalPaper Pages: 401 - 410

5. Selective chirality — A closer examination

   • William A. Bonner

   OriginalPaper Pages: 411 - 417

6. A statistical theory of amino acid mutation

   • Liaofu Luo
   • Yuming Zhou

   OriginalPaper Pages: 419 - 424

7. Chemical evolution and the origin of life

   • April Commodore Roy
   • Janet V. Powers

   OriginalPaper Pages: 425 - 456

8. Chemical evolution of the citric acid cycle: Sunlight and ultraviolet photolysis of cycle intermediates

   • T. G. Waddell
   • S. K. Geevarghese
   • J. J. Newton

   Erratum Pages: 457 - 457

9. Book reviews

   • Betsey Dexter Dyer
   • Michael H. Hanna
   • Masahiro R. Ishida

   BookReview Pages: 459 - 463

10. Adsorption of 5′-Adenosine monophosphate onto precipitated calcium phosphate: Effects of inorganic polyphosphates and carbamyl phosphate

    • Marcelo Hermes-Lima
    • Ana Claudia Tessis
    • Adalberto Vieyra

    Erratum Pages: 465 - 465

11. Announcement

    Announcement Pages: 467 - 467