1. The origin of mitochondria

   • L. Reijnders

   OriginalPaper Pages: 167 - 176

2. Gene flow versus selection pressure and ancestral differentiation in the composition of species: Analysis of populational variation ofJuniperus ashei buch. Using terpenoid data

   • R. P. Adams

   OriginalPaper Pages: 177 - 185

3. Study of double and triple simultaneous substitutions of amino acids in cytochromes C

   • Jean Schlusselberg
   • Danielle Debouverie

   OriginalPaper Pages: 187 - 197

4. Optimal design of feedback control by inhibition

   • Michael A. Savageau

   OriginalPaper Pages: 199 - 222

5. Ultraviolet-gas phase and -photocatalytic synthesis from CO and NH₃

   • J. S. Hubbard
   • G. E. Voecks
   • D. E. Nicodem

   OriginalPaper Pages: 223 - 241

   

6. Simultaneous existence of different environments in aqueous clay systems and its possible role in prebiotic synthesis

   • N. Lahav

   OriginalPaper Pages: 243 - 247

7. Comments on Holmquist's theory for paleogenetics

   • Masaru Iizuka
   • Kazushige Ishii
   • Hirotsugu Matsuda

   OriginalPaper Pages: 249 - 254

8. Comments on the articles of Flores and Bonner and of McCullough and Lemmon

   • Togwell A. Jackson

   Letter to the Editor Pages: 255 - 256

9. A reply to the comments of Jackson on the articles of Flores and Bonner and of McCullough and Lemmon

   • J. J. McCullough

   Letter to the Editor Pages: 257 - 257

10. Recently published papers in the field of molecular evolution

    OriginalPaper Pages: XIII - XIV