1. Otto Hug † 26. 7. 1913–22. 3. 1978

   • A. M. Kellerer

   Announcement Pages: 303 - 304

2. Geographical dimensions of terrestrial net and gross primary productivity

   • Elgene Box

   OriginalPaper Pages: 305 - 322

3. The enrichment of¹⁸O in leaf water under natural conditions

   • H. Förstel

   OriginalPaper Pages: 323 - 344

4. Seed germination as a thermobiological problem

   • Luiz Gouvêa Labouriau

   OriginalPaper Pages: 345 - 366

5. Studies on blood-brain barrier permeability after microwave-radiation

   • J. H. Merritt
   • A. F. Chamness
   • S. J. Allen

   OriginalPaper Pages: 367 - 377

6. Induction of mutations by photodynamic action of thiopyronine in Saccharomyces cerevisiae

   • D. Kenter
   • W. Laskowski

   OriginalPaper Pages: 379 - 385