1. Announcement

   Announcement Pages: v - v

2. In vivo interpretation of in vitro effect studies with a detailed analysis of the method of in vitro transcription in isolated cell nuclei

   • Roger Strand
   • Ragnar Fjelland
   • Torgeir Flatmark

   OriginalPaper Pages: 1 - 21

3. Differentiation between populations and its measurement

   • Hans-Rolf Gregorius

   OriginalPaper Pages: 23 - 36

4. Some prerequisites for a study of the evolution of cognition in the animal kingdom

   • Jacques Gervet
   • Alain Gallo
   • Muriel Soleilhavoup

   OriginalPaper Pages: 37 - 57

5. Atavisms in homo sapiens: A bolkian heterodoxy revisited

   • Jos Verhulst

   OriginalPaper Pages: 59 - 73

6. A possible contribution of phenomenology to ethology: Application to a behaviour pattern in the mouse

   • Fabienne Lenoble
   • Pascal Carlier

   OriginalPaper Pages: 75 - 83

7. Understanding nonlinear dynamics

   Reviews Pages: 85 - 93

8. Population genetics, molecular evolution, and the neutral theory. Selected papers

   • Maarten Nauta

   Reviews Pages: 86 - 88

9. Frontiers in mathematical biology

   Reviews Pages: 88 - 88

10. Passion des formes, à René Thom.

    Reviews Pages: 90 - 90