1. Towards a definition of living systems: A theory of ecological support for behavior

   • Edward S. Reed
   • Rebecca K. Jones

   OriginalPaper Pages: 153 - 163

2. A diffusion model for mesoderm induction in amphibian embryos

   • C. J. Weyer
   • P. D. Nieuwkoop
   • A. Lindenmayer

   OriginalPaper Pages: 164 - 180

3. Der typus — Idee und realität

   • Robert Kaspar

   OriginalPaper Pages: 181 - 195

4. Reviews

   BookReview Pages: 196 - 200

5. New acquisitions of our library

   Legacy Pages: 201 - 202